1 /*
2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
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 JNIEXPORT jobjectArray JNICALL
90 JVM_GetMethodParameters(JNIEnv *env, jobject method);
91
92 JNIEXPORT jint JNICALL
93 JVM_GetInterfaceVersion(void);
94
95 /*************************************************************************
96 PART 1: Functions for Native Libraries
97 ************************************************************************/
98 /*
99 * java.lang.Object
100 */
101 JNIEXPORT jint JNICALL
102 JVM_IHashCode(JNIEnv *env, jobject obj);
103
104 JNIEXPORT void JNICALL
105 JVM_MonitorWait(JNIEnv *env, jobject obj, jlong ms);
106
107 JNIEXPORT void JNICALL
108 JVM_MonitorNotify(JNIEnv *env, jobject obj);
109
110 JNIEXPORT void JNICALL
111 JVM_MonitorNotifyAll(JNIEnv *env, jobject obj);
112
113 JNIEXPORT jobject JNICALL
114 JVM_Clone(JNIEnv *env, jobject obj);
115
116 /*
117 * java.lang.String
118 */
119 JNIEXPORT jstring JNICALL
120 JVM_InternString(JNIEnv *env, jstring str);
121
122 /*
123 * java.lang.System
124 */
125 JNIEXPORT jlong JNICALL
126 JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored);
127
128 JNIEXPORT jlong JNICALL
129 JVM_NanoTime(JNIEnv *env, jclass ignored);
130
131 JNIEXPORT void JNICALL
132 JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos,
133 jobject dst, jint dst_pos, jint length);
134
135 JNIEXPORT jobject JNICALL
136 JVM_InitProperties(JNIEnv *env, jobject p);
137
138 /*
139 * java.io.File
140 */
141 JNIEXPORT void JNICALL
142 JVM_OnExit(void (*func)(void));
143
144 /*
145 * java.lang.Runtime
146 */
147 JNIEXPORT void JNICALL
148 JVM_Exit(jint code);
149
150 JNIEXPORT void JNICALL
151 JVM_Halt(jint code);
152
153 JNIEXPORT void JNICALL
154 JVM_GC(void);
155
156 /* Returns the number of real-time milliseconds that have elapsed since the
157 * least-recently-inspected heap object was last inspected by the garbage
158 * collector.
159 *
160 * For simple stop-the-world collectors this value is just the time
161 * since the most recent collection. For generational collectors it is the
162 * time since the oldest generation was most recently collected. Other
163 * collectors are free to return a pessimistic estimate of the elapsed time, or
164 * simply the time since the last full collection was performed.
165 *
166 * Note that in the presence of reference objects, a given object that is no
167 * longer strongly reachable may have to be inspected multiple times before it
168 * can be reclaimed.
169 */
170 JNIEXPORT jlong JNICALL
171 JVM_MaxObjectInspectionAge(void);
172
173 JNIEXPORT void JNICALL
174 JVM_TraceInstructions(jboolean on);
175
176 JNIEXPORT void JNICALL
177 JVM_TraceMethodCalls(jboolean on);
178
179 JNIEXPORT jlong JNICALL
180 JVM_TotalMemory(void);
181
182 JNIEXPORT jlong JNICALL
183 JVM_FreeMemory(void);
184
185 JNIEXPORT jlong JNICALL
186 JVM_MaxMemory(void);
187
188 JNIEXPORT jint JNICALL
189 JVM_ActiveProcessorCount(void);
190
191 JNIEXPORT void * JNICALL
192 JVM_LoadLibrary(const char *name);
193
194 JNIEXPORT void JNICALL
195 JVM_UnloadLibrary(void * handle);
196
197 JNIEXPORT void * JNICALL
198 JVM_FindLibraryEntry(void *handle, const char *name);
199
200 JNIEXPORT jboolean JNICALL
201 JVM_IsSupportedJNIVersion(jint version);
202
203 /*
204 * java.lang.Float and java.lang.Double
205 */
206 JNIEXPORT jboolean JNICALL
207 JVM_IsNaN(jdouble d);
208
209 /*
210 * java.lang.Throwable
211 */
212 JNIEXPORT void JNICALL
213 JVM_FillInStackTrace(JNIEnv *env, jobject throwable);
214
215 JNIEXPORT jint JNICALL
216 JVM_GetStackTraceDepth(JNIEnv *env, jobject throwable);
217
218 JNIEXPORT jobject JNICALL
219 JVM_GetStackTraceElement(JNIEnv *env, jobject throwable, jint index);
220
221 /*
222 * java.lang.Compiler
223 */
224 JNIEXPORT void JNICALL
225 JVM_InitializeCompiler (JNIEnv *env, jclass compCls);
226
227 JNIEXPORT jboolean JNICALL
228 JVM_IsSilentCompiler(JNIEnv *env, jclass compCls);
229
230 JNIEXPORT jboolean JNICALL
231 JVM_CompileClass(JNIEnv *env, jclass compCls, jclass cls);
232
233 JNIEXPORT jboolean JNICALL
234 JVM_CompileClasses(JNIEnv *env, jclass cls, jstring jname);
235
236 JNIEXPORT jobject JNICALL
237 JVM_CompilerCommand(JNIEnv *env, jclass compCls, jobject arg);
238
239 JNIEXPORT void JNICALL
240 JVM_EnableCompiler(JNIEnv *env, jclass compCls);
241
242 JNIEXPORT void JNICALL
243 JVM_DisableCompiler(JNIEnv *env, jclass compCls);
244
245 /*
246 * java.lang.Thread
247 */
248 JNIEXPORT void JNICALL
249 JVM_StartThread(JNIEnv *env, jobject thread);
250
251 JNIEXPORT void JNICALL
252 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception);
253
254 JNIEXPORT jboolean JNICALL
255 JVM_IsThreadAlive(JNIEnv *env, jobject thread);
256
257 JNIEXPORT void JNICALL
258 JVM_SuspendThread(JNIEnv *env, jobject thread);
259
260 JNIEXPORT void JNICALL
261 JVM_ResumeThread(JNIEnv *env, jobject thread);
262
263 JNIEXPORT void JNICALL
264 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio);
265
266 JNIEXPORT void JNICALL
267 JVM_Yield(JNIEnv *env, jclass threadClass);
268
269 JNIEXPORT void JNICALL
270 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis);
271
272 JNIEXPORT jobject JNICALL
273 JVM_CurrentThread(JNIEnv *env, jclass threadClass);
274
275 JNIEXPORT jint JNICALL
276 JVM_CountStackFrames(JNIEnv *env, jobject thread);
277
278 JNIEXPORT void JNICALL
279 JVM_Interrupt(JNIEnv *env, jobject thread);
280
281 JNIEXPORT jboolean JNICALL
282 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted);
283
284 JNIEXPORT jboolean JNICALL
285 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);
286
287 JNIEXPORT void JNICALL
288 JVM_DumpAllStacks(JNIEnv *env, jclass unused);
289
290 JNIEXPORT jobjectArray JNICALL
291 JVM_GetAllThreads(JNIEnv *env, jclass dummy);
292
293 JNIEXPORT void JNICALL
294 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name);
295
296 /* getStackTrace() and getAllStackTraces() method */
297 JNIEXPORT jobjectArray JNICALL
298 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
299
300 /*
301 * java.lang.SecurityManager
302 */
303 JNIEXPORT jclass JNICALL
304 JVM_CurrentLoadedClass(JNIEnv *env);
305
306 JNIEXPORT jobject JNICALL
307 JVM_CurrentClassLoader(JNIEnv *env);
308
309 JNIEXPORT jobjectArray JNICALL
310 JVM_GetClassContext(JNIEnv *env);
311
312 JNIEXPORT jint JNICALL
313 JVM_ClassDepth(JNIEnv *env, jstring name);
314
315 JNIEXPORT jint JNICALL
316 JVM_ClassLoaderDepth(JNIEnv *env);
317
318 /*
319 * java.lang.Package
320 */
321 JNIEXPORT jstring JNICALL
322 JVM_GetSystemPackage(JNIEnv *env, jstring name);
323
324 JNIEXPORT jobjectArray JNICALL
325 JVM_GetSystemPackages(JNIEnv *env);
326
327 /*
328 * java.io.ObjectInputStream
329 */
330 JNIEXPORT jobject JNICALL
331 JVM_AllocateNewObject(JNIEnv *env, jobject obj, jclass currClass,
332 jclass initClass);
333
334 JNIEXPORT jobject JNICALL
335 JVM_AllocateNewArray(JNIEnv *env, jobject obj, jclass currClass,
336 jint length);
337
338 JNIEXPORT jobject JNICALL
339 JVM_LatestUserDefinedLoader(JNIEnv *env);
340
341 /*
342 * This function has been deprecated and should not be considered
343 * part of the specified JVM interface.
344 */
345 JNIEXPORT jclass JNICALL
346 JVM_LoadClass0(JNIEnv *env, jobject obj, jclass currClass,
347 jstring currClassName);
348
349 /*
350 * java.lang.reflect.Array
351 */
352 JNIEXPORT jint JNICALL
353 JVM_GetArrayLength(JNIEnv *env, jobject arr);
354
355 JNIEXPORT jobject JNICALL
356 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
357
358 JNIEXPORT jvalue JNICALL
359 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
360
361 JNIEXPORT void JNICALL
362 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
363
364 JNIEXPORT void JNICALL
365 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
366 unsigned char vCode);
367
368 JNIEXPORT jobject JNICALL
369 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
370
371 JNIEXPORT jobject JNICALL
372 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
373
374 /*
375 * java.lang.Class and java.lang.ClassLoader
376 */
377 /*
378 * Returns the class in which the code invoking the native method
379 * belongs.
380 *
381 * Note that in JDK 1.1, native methods did not create a frame.
382 * In 1.2, they do. Therefore native methods like Class.forName
383 * can no longer look at the current frame for the caller class.
384 */
385 JNIEXPORT jclass JNICALL
386 JVM_GetCallerClass(JNIEnv *env, int n);
387
388 /*
389 * Find primitive classes
390 * utf: class name
391 */
392 JNIEXPORT jclass JNICALL
393 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
394
395 /*
396 * Link the class
397 */
398 JNIEXPORT void JNICALL
399 JVM_ResolveClass(JNIEnv *env, jclass cls);
400
401 /*
402 * Find a class from a given class loader. Throw ClassNotFoundException
403 * or NoClassDefFoundError depending on the value of the last
404 * argument.
405 */
406 JNIEXPORT jclass JNICALL
407 JVM_FindClassFromClassLoader(JNIEnv *env, const char *name, jboolean init,
408 jobject loader, jboolean throwError);
409
410 /*
411 * Find a class from a boot class loader. Returns NULL if class not found.
412 */
413 JNIEXPORT jclass JNICALL
414 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
415
416 /*
417 * Find a class from a given class.
418 */
419 JNIEXPORT jclass JNICALL
420 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
421 jclass from);
422
423 /* Find a loaded class cached by the VM */
424 JNIEXPORT jclass JNICALL
425 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
426
427 /* Define a class */
428 JNIEXPORT jclass JNICALL
429 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
430 jsize len, jobject pd);
431
432 /* Define a class with a source (added in JDK1.5) */
433 JNIEXPORT jclass JNICALL
434 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
435 const jbyte *buf, jsize len, jobject pd,
436 const char *source);
437
438 /* Define a class with a source with conditional verification (added HSX 14)
439 * -Xverify:all will verify anyway, -Xverify:none will not verify,
440 * -Xverify:remote (default) will obey this conditional
441 * i.e. true = should_verify_class
442 */
443 JNIEXPORT jclass JNICALL
444 JVM_DefineClassWithSourceCond(JNIEnv *env, const char *name,
445 jobject loader, const jbyte *buf,
446 jsize len, jobject pd, const char *source,
447 jboolean verify);
448
449 /*
450 * Reflection support functions
451 */
452
453 JNIEXPORT jstring JNICALL
454 JVM_GetClassName(JNIEnv *env, jclass cls);
455
456 JNIEXPORT jobjectArray JNICALL
457 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
458
459 JNIEXPORT jobject JNICALL
460 JVM_GetClassLoader(JNIEnv *env, jclass cls);
461
462 JNIEXPORT jboolean JNICALL
463 JVM_IsInterface(JNIEnv *env, jclass cls);
464
465 JNIEXPORT jobjectArray JNICALL
466 JVM_GetClassSigners(JNIEnv *env, jclass cls);
467
468 JNIEXPORT void JNICALL
469 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
470
471 JNIEXPORT jobject JNICALL
472 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
473
474 JNIEXPORT void JNICALL
475 JVM_SetProtectionDomain(JNIEnv *env, jclass cls, jobject protection_domain);
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 jclass JNICALL
484 JVM_GetComponentType(JNIEnv *env, jclass cls);
485
486 JNIEXPORT jint JNICALL
487 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
488
489 JNIEXPORT jobjectArray JNICALL
490 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
491
492 JNIEXPORT jclass JNICALL
493 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
494
495 /* Generics support (JDK 1.5) */
496 JNIEXPORT jstring JNICALL
497 JVM_GetClassSignature(JNIEnv *env, jclass cls);
498
499 /* Annotations support (JDK 1.5) */
500 JNIEXPORT jbyteArray JNICALL
501 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
502
503 /* Annotations support (JDK 1.6) */
504
505 // field is a handle to a java.lang.reflect.Field object
506 JNIEXPORT jbyteArray JNICALL
507 JVM_GetFieldAnnotations(JNIEnv *env, jobject field);
508
509 // method is a handle to a java.lang.reflect.Method object
510 JNIEXPORT jbyteArray JNICALL
511 JVM_GetMethodAnnotations(JNIEnv *env, jobject method);
512
513 // method is a handle to a java.lang.reflect.Method object
514 JNIEXPORT jbyteArray JNICALL
515 JVM_GetMethodDefaultAnnotationValue(JNIEnv *env, jobject method);
516
517 // method is a handle to a java.lang.reflect.Method object
518 JNIEXPORT jbyteArray JNICALL
519 JVM_GetMethodParameterAnnotations(JNIEnv *env, jobject method);
520
521 /* Type use annotations support (JDK 1.8) */
522
523 JNIEXPORT jbyteArray JNICALL
524 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls);
525
526 // field is a handle to a java.lang.reflect.Field object
527 JNIEXPORT jbyteArray JNICALL
528 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field);
529
530 // method is a handle to a java.lang.reflect.Method object
531 JNIEXPORT jbyteArray JNICALL
532 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method);
533
534 /*
535 * New (JDK 1.4) reflection implementation
536 */
537
538 JNIEXPORT jobjectArray JNICALL
539 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
540
541 JNIEXPORT jobjectArray JNICALL
542 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
543
544 JNIEXPORT jobjectArray JNICALL
545 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
546
547 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
548 This returns the access flags for the class as specified in the
549 class file rather than searching the InnerClasses attribute (if
550 present) to find the source-level access flags. Only the values of
551 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
552 valid. */
553 JNIEXPORT jint JNICALL
554 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
555
556 /*
557 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
558 */
559
560 JNIEXPORT jobject JNICALL
561 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
562
563 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
564 (JNIEnv *env, jobject obj, jobject unused);
565
566 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
567 (JNIEnv *env, jobject obj, jobject unused, jint index);
568
569 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
570 (JNIEnv *env, jobject obj, jobject unused, jint index);
571
572 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
573 (JNIEnv *env, jobject obj, jobject unused, jint index);
574
575 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
576 (JNIEnv *env, jobject obj, jobject unused, jint index);
577
578 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
579 (JNIEnv *env, jobject obj, jobject unused, jint index);
580
581 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
582 (JNIEnv *env, jobject obj, jobject unused, jint index);
583
584 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
585 (JNIEnv *env, jobject obj, jobject unused, jint index);
586
587 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
588 (JNIEnv *env, jobject obj, jobject unused, jint index);
589
590 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
591 (JNIEnv *env, jobject obj, jobject unused, jint index);
592
593 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
594 (JNIEnv *env, jobject obj, jobject unused, jint index);
595
596 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
597 (JNIEnv *env, jobject obj, jobject unused, jint index);
598
599 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
600 (JNIEnv *env, jobject obj, jobject unused, jint index);
601
602 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
603 (JNIEnv *env, jobject obj, jobject unused, jint index);
604
605 /*
606 * java.security.*
607 */
608
609 JNIEXPORT jobject JNICALL
610 JVM_DoPrivileged(JNIEnv *env, jclass cls,
611 jobject action, jobject context, jboolean wrapException);
612
613 JNIEXPORT jobject JNICALL
614 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
615
616 JNIEXPORT jobject JNICALL
617 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
618
619 /*
620 * Signal support, used to implement the shutdown sequence. Every VM must
621 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
622 * (^C) and the latter for external termination (kill, system shutdown, etc.).
623 * Other platform-dependent signal values may also be supported.
624 */
625
626 JNIEXPORT void * JNICALL
627 JVM_RegisterSignal(jint sig, void *handler);
628
629 JNIEXPORT jboolean JNICALL
630 JVM_RaiseSignal(jint sig);
631
632 JNIEXPORT jint JNICALL
633 JVM_FindSignal(const char *name);
634
635 /*
636 * Retrieve the assertion directives for the specified class.
637 */
638 JNIEXPORT jboolean JNICALL
639 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
640
641 /*
642 * Retrieve the assertion directives from the VM.
643 */
644 JNIEXPORT jobject JNICALL
645 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
646
647 /*
648 * java.util.concurrent.atomic.AtomicLong
649 */
650 JNIEXPORT jboolean JNICALL
651 JVM_SupportsCX8(void);
652
653 JNIEXPORT jboolean JNICALL
654 JVM_CX8Field(JNIEnv *env, jobject obj, jfieldID fldID, jlong oldVal, jlong newVal);
655
656 /*
657 * com.sun.dtrace.jsdt support
658 */
659
660 #define JVM_TRACING_DTRACE_VERSION 1
661
662 /*
663 * Structure to pass one probe description to JVM.
664 *
665 * The VM will overwrite the definition of the referenced method with
666 * code that will fire the probe.
667 */
668 typedef struct {
669 jmethodID method;
670 jstring function;
671 jstring name;
672 void* reserved[4]; // for future use
673 } JVM_DTraceProbe;
674
675 /**
676 * Encapsulates the stability ratings for a DTrace provider field
677 */
678 typedef struct {
679 jint nameStability;
680 jint dataStability;
681 jint dependencyClass;
682 } JVM_DTraceInterfaceAttributes;
683
684 /*
685 * Structure to pass one provider description to JVM
686 */
687 typedef struct {
688 jstring name;
689 JVM_DTraceProbe* probes;
690 jint probe_count;
691 JVM_DTraceInterfaceAttributes providerAttributes;
692 JVM_DTraceInterfaceAttributes moduleAttributes;
693 JVM_DTraceInterfaceAttributes functionAttributes;
694 JVM_DTraceInterfaceAttributes nameAttributes;
695 JVM_DTraceInterfaceAttributes argsAttributes;
696 void* reserved[4]; // for future use
697 } JVM_DTraceProvider;
698
699 /*
700 * Get the version number the JVM was built with
701 */
702 JNIEXPORT jint JNICALL
703 JVM_DTraceGetVersion(JNIEnv* env);
704
705 /*
706 * Register new probe with given signature, return global handle
707 *
708 * The version passed in is the version that the library code was
709 * built with.
710 */
711 JNIEXPORT jlong JNICALL
712 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name,
713 jint providers_count, JVM_DTraceProvider* providers);
714
715 /*
716 * Check JSDT probe
717 */
718 JNIEXPORT jboolean JNICALL
719 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method);
720
721 /*
722 * Destroy custom DOF
723 */
724 JNIEXPORT void JNICALL
725 JVM_DTraceDispose(JNIEnv* env, jlong handle);
726
727 /*
728 * Check to see if DTrace is supported by OS
729 */
730 JNIEXPORT jboolean JNICALL
731 JVM_DTraceIsSupported(JNIEnv* env);
732
733 /*************************************************************************
734 PART 2: Support for the Verifier and Class File Format Checker
735 ************************************************************************/
736 /*
737 * Return the class name in UTF format. The result is valid
738 * until JVM_ReleaseUTf is called.
739 *
740 * The caller must treat the string as a constant and not modify it
741 * in any way.
742 */
743 JNIEXPORT const char * JNICALL
744 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
745
746 /*
747 * Returns the constant pool types in the buffer provided by "types."
748 */
749 JNIEXPORT void JNICALL
750 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
751
752 /*
753 * Returns the number of Constant Pool entries.
754 */
755 JNIEXPORT jint JNICALL
756 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
757
758 /*
759 * Returns the number of *declared* fields or methods.
760 */
761 JNIEXPORT jint JNICALL
762 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
763
764 JNIEXPORT jint JNICALL
765 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
766
767 /*
768 * Returns the CP indexes of exceptions raised by a given method.
769 * Places the result in the given buffer.
770 *
771 * The method is identified by method_index.
772 */
773 JNIEXPORT void JNICALL
774 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
775 unsigned short *exceptions);
776 /*
777 * Returns the number of exceptions raised by a given method.
778 * The method is identified by method_index.
779 */
780 JNIEXPORT jint JNICALL
781 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
782
783 /*
784 * Returns the byte code sequence of a given method.
785 * Places the result in the given buffer.
786 *
787 * The method is identified by method_index.
788 */
789 JNIEXPORT void JNICALL
790 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
791 unsigned char *code);
792
793 /*
794 * Returns the length of the byte code sequence of a given method.
795 * The method is identified by method_index.
796 */
797 JNIEXPORT jint JNICALL
798 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
799
800 /*
801 * A structure used to a capture exception table entry in a Java method.
802 */
803 typedef struct {
804 jint start_pc;
805 jint end_pc;
806 jint handler_pc;
807 jint catchType;
808 } JVM_ExceptionTableEntryType;
809
810 /*
811 * Returns the exception table entry at entry_index of a given method.
812 * Places the result in the given buffer.
813 *
814 * The method is identified by method_index.
815 */
816 JNIEXPORT void JNICALL
817 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
818 jint entry_index,
819 JVM_ExceptionTableEntryType *entry);
820
821 /*
822 * Returns the length of the exception table of a given method.
823 * The method is identified by method_index.
824 */
825 JNIEXPORT jint JNICALL
826 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
827
828 /*
829 * Returns the modifiers of a given field.
830 * The field is identified by field_index.
831 */
832 JNIEXPORT jint JNICALL
833 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
834
835 /*
836 * Returns the modifiers of a given method.
837 * The method is identified by method_index.
838 */
839 JNIEXPORT jint JNICALL
840 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
841
842 /*
843 * Returns the number of local variables of a given method.
844 * The method is identified by method_index.
845 */
846 JNIEXPORT jint JNICALL
847 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
848
849 /*
850 * Returns the number of arguments (including this pointer) of a given method.
851 * The method is identified by method_index.
852 */
853 JNIEXPORT jint JNICALL
854 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
855
856 /*
857 * Returns the maximum amount of stack (in words) used by a given method.
858 * The method is identified by method_index.
859 */
860 JNIEXPORT jint JNICALL
861 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
862
863 /*
864 * Is a given method a constructor.
865 * The method is identified by method_index.
866 */
867 JNIEXPORT jboolean JNICALL
868 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
869
870 /*
871 * Is the given method generated by the VM.
872 * The method is identified by method_index.
873 */
874 JNIEXPORT jboolean JNICALL
875 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index);
876
877 /*
878 * Returns the name of a given method in UTF format.
879 * The result remains valid until JVM_ReleaseUTF is called.
880 *
881 * The caller must treat the string as a constant and not modify it
882 * in any way.
883 */
884 JNIEXPORT const char * JNICALL
885 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
886
887 /*
888 * Returns the signature of a given method in UTF format.
889 * The result remains valid until JVM_ReleaseUTF is called.
890 *
891 * The caller must treat the string as a constant and not modify it
892 * in any way.
893 */
894 JNIEXPORT const char * JNICALL
895 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
896
897 /*
898 * Returns the name of the field refered to at a given constant pool
899 * index.
900 *
901 * The result is in UTF format and remains valid until JVM_ReleaseUTF
902 * is called.
903 *
904 * The caller must treat the string as a constant and not modify it
905 * in any way.
906 */
907 JNIEXPORT const char * JNICALL
908 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
909
910 /*
911 * Returns the name of the method refered to at a given constant pool
912 * index.
913 *
914 * The result is in UTF format and remains valid until JVM_ReleaseUTF
915 * is called.
916 *
917 * The caller must treat the string as a constant and not modify it
918 * in any way.
919 */
920 JNIEXPORT const char * JNICALL
921 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
922
923 /*
924 * Returns the signature of the method refered to at a given constant pool
925 * index.
926 *
927 * The result is in UTF format and remains valid until JVM_ReleaseUTF
928 * is called.
929 *
930 * The caller must treat the string as a constant and not modify it
931 * in any way.
932 */
933 JNIEXPORT const char * JNICALL
934 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
935
936 /*
937 * Returns the signature of the field refered to at a given constant pool
938 * index.
939 *
940 * The result is in UTF format and remains valid until JVM_ReleaseUTF
941 * is called.
942 *
943 * The caller must treat the string as a constant and not modify it
944 * in any way.
945 */
946 JNIEXPORT const char * JNICALL
947 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
948
949 /*
950 * Returns the class name refered to at a given constant pool index.
951 *
952 * The result is in UTF format and remains valid until JVM_ReleaseUTF
953 * is called.
954 *
955 * The caller must treat the string as a constant and not modify it
956 * in any way.
957 */
958 JNIEXPORT const char * JNICALL
959 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
960
961 /*
962 * Returns the class name refered to at a given constant pool index.
963 *
964 * The constant pool entry must refer to a CONSTANT_Fieldref.
965 *
966 * The result is in UTF format and remains valid until JVM_ReleaseUTF
967 * is called.
968 *
969 * The caller must treat the string as a constant and not modify it
970 * in any way.
971 */
972 JNIEXPORT const char * JNICALL
973 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
974
975 /*
976 * Returns the class name refered to at a given constant pool index.
977 *
978 * The constant pool entry must refer to CONSTANT_Methodref or
979 * CONSTANT_InterfaceMethodref.
980 *
981 * The result is in UTF format and remains valid until JVM_ReleaseUTF
982 * is called.
983 *
984 * The caller must treat the string as a constant and not modify it
985 * in any way.
986 */
987 JNIEXPORT const char * JNICALL
988 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
989
990 /*
991 * Returns the modifiers of a field in calledClass. The field is
992 * referred to in class cb at constant pool entry index.
993 *
994 * The caller must treat the string as a constant and not modify it
995 * in any way.
996 *
997 * Returns -1 if the field does not exist in calledClass.
998 */
999 JNIEXPORT jint JNICALL
1000 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
1001
1002 /*
1003 * Returns the modifiers of a method in calledClass. The method is
1004 * referred to in class cb at constant pool entry index.
1005 *
1006 * Returns -1 if the method does not exist in calledClass.
1007 */
1008 JNIEXPORT jint JNICALL
1009 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
1010
1011 /*
1012 * Releases the UTF string obtained from the VM.
1013 */
1014 JNIEXPORT void JNICALL
1015 JVM_ReleaseUTF(const char *utf);
1016
1017 /*
1018 * Compare if two classes are in the same package.
1019 */
1020 JNIEXPORT jboolean JNICALL
1021 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
1022
1023 /* Constants in class files */
1024
1025 #define JVM_ACC_PUBLIC 0x0001 /* visible to everyone */
1026 #define JVM_ACC_PRIVATE 0x0002 /* visible only to the defining class */
1027 #define JVM_ACC_PROTECTED 0x0004 /* visible to subclasses */
1028 #define JVM_ACC_STATIC 0x0008 /* instance variable is static */
1029 #define JVM_ACC_FINAL 0x0010 /* no further subclassing, overriding */
1030 #define JVM_ACC_SYNCHRONIZED 0x0020 /* wrap method call in monitor lock */
1031 #define JVM_ACC_SUPER 0x0020 /* funky handling of invokespecial */
1032 #define JVM_ACC_VOLATILE 0x0040 /* can not cache in registers */
1033 #define JVM_ACC_BRIDGE 0x0040 /* bridge method generated by compiler */
1034 #define JVM_ACC_TRANSIENT 0x0080 /* not persistent */
1035 #define JVM_ACC_VARARGS 0x0080 /* method declared with variable number of args */
1036 #define JVM_ACC_NATIVE 0x0100 /* implemented in C */
1037 #define JVM_ACC_INTERFACE 0x0200 /* class is an interface */
1038 #define JVM_ACC_ABSTRACT 0x0400 /* no definition provided */
1039 #define JVM_ACC_STRICT 0x0800 /* strict floating point */
1040 #define JVM_ACC_SYNTHETIC 0x1000 /* compiler-generated class, method or field */
1041 #define JVM_ACC_ANNOTATION 0x2000 /* annotation type */
1042 #define JVM_ACC_ENUM 0x4000 /* field is declared as element of enum */
1043
1044 #define JVM_ACC_PUBLIC_BIT 0
1045 #define JVM_ACC_PRIVATE_BIT 1
1046 #define JVM_ACC_PROTECTED_BIT 2
1047 #define JVM_ACC_STATIC_BIT 3
1048 #define JVM_ACC_FINAL_BIT 4
1049 #define JVM_ACC_SYNCHRONIZED_BIT 5
1050 #define JVM_ACC_SUPER_BIT 5
1051 #define JVM_ACC_VOLATILE_BIT 6
1052 #define JVM_ACC_BRIDGE_BIT 6
1053 #define JVM_ACC_TRANSIENT_BIT 7
1054 #define JVM_ACC_VARARGS_BIT 7
1055 #define JVM_ACC_NATIVE_BIT 8
1056 #define JVM_ACC_INTERFACE_BIT 9
1057 #define JVM_ACC_ABSTRACT_BIT 10
1058 #define JVM_ACC_STRICT_BIT 11
1059 #define JVM_ACC_SYNTHETIC_BIT 12
1060 #define JVM_ACC_ANNOTATION_BIT 13
1061 #define JVM_ACC_ENUM_BIT 14
1062
1063 // NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/utilities/ConstantTag.java
1064 enum {
1065 JVM_CONSTANT_Utf8 = 1,
1066 JVM_CONSTANT_Unicode, /* unused */
1067 JVM_CONSTANT_Integer,
1068 JVM_CONSTANT_Float,
1069 JVM_CONSTANT_Long,
1070 JVM_CONSTANT_Double,
1071 JVM_CONSTANT_Class,
1072 JVM_CONSTANT_String,
1073 JVM_CONSTANT_Fieldref,
1074 JVM_CONSTANT_Methodref,
1075 JVM_CONSTANT_InterfaceMethodref,
1076 JVM_CONSTANT_NameAndType,
1077 JVM_CONSTANT_MethodHandle = 15, // JSR 292
1078 JVM_CONSTANT_MethodType = 16, // JSR 292
1079 //JVM_CONSTANT_(unused) = 17, // JSR 292 early drafts only
1080 JVM_CONSTANT_InvokeDynamic = 18, // JSR 292
1081 JVM_CONSTANT_ExternalMax = 18 // Last tag found in classfiles
1082 };
1083
1084 /* JVM_CONSTANT_MethodHandle subtypes */
1085 enum {
1086 JVM_REF_getField = 1,
1087 JVM_REF_getStatic = 2,
1088 JVM_REF_putField = 3,
1089 JVM_REF_putStatic = 4,
1090 JVM_REF_invokeVirtual = 5,
1091 JVM_REF_invokeStatic = 6,
1092 JVM_REF_invokeSpecial = 7,
1093 JVM_REF_newInvokeSpecial = 8,
1094 JVM_REF_invokeInterface = 9
1095 };
1096
1097 /* Used in the newarray instruction. */
1098
1099 #define JVM_T_BOOLEAN 4
1100 #define JVM_T_CHAR 5
1101 #define JVM_T_FLOAT 6
1102 #define JVM_T_DOUBLE 7
1103 #define JVM_T_BYTE 8
1104 #define JVM_T_SHORT 9
1105 #define JVM_T_INT 10
1106 #define JVM_T_LONG 11
1107
1108 /* JVM method signatures */
1109
1110 #define JVM_SIGNATURE_ARRAY '['
1111 #define JVM_SIGNATURE_BYTE 'B'
1112 #define JVM_SIGNATURE_CHAR 'C'
1113 #define JVM_SIGNATURE_CLASS 'L'
1114 #define JVM_SIGNATURE_ENDCLASS ';'
1115 #define JVM_SIGNATURE_ENUM 'E'
1116 #define JVM_SIGNATURE_FLOAT 'F'
1117 #define JVM_SIGNATURE_DOUBLE 'D'
1118 #define JVM_SIGNATURE_FUNC '('
1119 #define JVM_SIGNATURE_ENDFUNC ')'
1120 #define JVM_SIGNATURE_INT 'I'
1121 #define JVM_SIGNATURE_LONG 'J'
1122 #define JVM_SIGNATURE_SHORT 'S'
1123 #define JVM_SIGNATURE_VOID 'V'
1124 #define JVM_SIGNATURE_BOOLEAN 'Z'
1125
1126 /*
1127 * A function defined by the byte-code verifier and called by the VM.
1128 * This is not a function implemented in the VM.
1129 *
1130 * Returns JNI_FALSE if verification fails. A detailed error message
1131 * will be places in msg_buf, whose length is specified by buf_len.
1132 */
1133 typedef jboolean (*verifier_fn_t)(JNIEnv *env,
1134 jclass cb,
1135 char * msg_buf,
1136 jint buf_len);
1137
1138
1139 /*
1140 * Support for a VM-independent class format checker.
1141 */
1142 typedef struct {
1143 unsigned long code; /* byte code */
1144 unsigned long excs; /* exceptions */
1145 unsigned long etab; /* catch table */
1146 unsigned long lnum; /* line number */
1147 unsigned long lvar; /* local vars */
1148 } method_size_info;
1149
1150 typedef struct {
1151 unsigned int constants; /* constant pool */
1152 unsigned int fields;
1153 unsigned int methods;
1154 unsigned int interfaces;
1155 unsigned int fields2; /* number of static 2-word fields */
1156 unsigned int innerclasses; /* # of records in InnerClasses attr */
1157
1158 method_size_info clinit; /* memory used in clinit */
1159 method_size_info main; /* used everywhere else */
1160 } class_size_info;
1161
1162 /*
1163 * Functions defined in libjava.so to perform string conversions.
1164 *
1165 */
1166
1167 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str);
1168
1169 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b);
1170
1171 /* This is the function defined in libjava.so that performs class
1172 * format checks. This functions fills in size information about
1173 * the class file and returns:
1174 *
1175 * 0: good
1176 * -1: out of memory
1177 * -2: bad format
1178 * -3: unsupported version
1179 * -4: bad class name
1180 */
1181
1182 typedef jint (*check_format_fn_t)(char *class_name,
1183 unsigned char *data,
1184 unsigned int data_size,
1185 class_size_info *class_size,
1186 char *message_buffer,
1187 jint buffer_length,
1188 jboolean measure_only,
1189 jboolean check_relaxed);
1190
1191 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1192 JVM_ACC_FINAL | \
1193 JVM_ACC_SUPER | \
1194 JVM_ACC_INTERFACE | \
1195 JVM_ACC_ABSTRACT | \
1196 JVM_ACC_ANNOTATION | \
1197 JVM_ACC_ENUM | \
1198 JVM_ACC_SYNTHETIC)
1199
1200 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1201 JVM_ACC_PRIVATE | \
1202 JVM_ACC_PROTECTED | \
1203 JVM_ACC_STATIC | \
1204 JVM_ACC_FINAL | \
1205 JVM_ACC_VOLATILE | \
1206 JVM_ACC_TRANSIENT | \
1207 JVM_ACC_ENUM | \
1208 JVM_ACC_SYNTHETIC)
1209
1210 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1211 JVM_ACC_PRIVATE | \
1212 JVM_ACC_PROTECTED | \
1213 JVM_ACC_STATIC | \
1214 JVM_ACC_FINAL | \
1215 JVM_ACC_SYNCHRONIZED | \
1216 JVM_ACC_BRIDGE | \
1217 JVM_ACC_VARARGS | \
1218 JVM_ACC_NATIVE | \
1219 JVM_ACC_ABSTRACT | \
1220 JVM_ACC_STRICT | \
1221 JVM_ACC_SYNTHETIC)
1222
1223 /*
1224 * This is the function defined in libjava.so to perform path
1225 * canonicalization. VM call this function before opening jar files
1226 * to load system classes.
1227 *
1228 */
1229
1230 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len);
1231
1232 /*************************************************************************
1233 PART 3: I/O and Network Support
1234 ************************************************************************/
1235
1236 /* Note that the JVM IO functions are expected to return JVM_IO_ERR
1237 * when there is any kind of error. The caller can then use the
1238 * platform specific support (e.g., errno) to get the detailed
1239 * error info. The JVM_GetLastErrorString procedure may also be used
1240 * to obtain a descriptive error string.
1241 */
1242 #define JVM_IO_ERR (-1)
1243
1244 /* For interruptible IO. Returning JVM_IO_INTR indicates that an IO
1245 * operation has been disrupted by Thread.interrupt. There are a
1246 * number of technical difficulties related to interruptible IO that
1247 * need to be solved. For example, most existing programs do not handle
1248 * InterruptedIOExceptions specially, they simply treat those as any
1249 * IOExceptions, which typically indicate fatal errors.
1250 *
1251 * There are also two modes of operation for interruptible IO. In the
1252 * resumption mode, an interrupted IO operation is guaranteed not to
1253 * have any side-effects, and can be restarted. In the termination mode,
1254 * an interrupted IO operation corrupts the underlying IO stream, so
1255 * that the only reasonable operation on an interrupted stream is to
1256 * close that stream. The resumption mode seems to be impossible to
1257 * implement on Win32 and Solaris. Implementing the termination mode is
1258 * easier, but it's not clear that's the right semantics.
1259 *
1260 * Interruptible IO is not supported on Win32.It can be enabled/disabled
1261 * using a compile-time flag on Solaris. Third-party JVM ports do not
1262 * need to implement interruptible IO.
1263 */
1264 #define JVM_IO_INTR (-2)
1265
1266 /* Write a string into the given buffer, in the platform's local encoding,
1267 * that describes the most recent system-level error to occur in this thread.
1268 * Return the length of the string or zero if no error occurred.
1269 */
1270 JNIEXPORT jint JNICALL
1271 JVM_GetLastErrorString(char *buf, int len);
1272
1273 /*
1274 * Convert a pathname into native format. This function does syntactic
1275 * cleanup, such as removing redundant separator characters. It modifies
1276 * the given pathname string in place.
1277 */
1278 JNIEXPORT char * JNICALL
1279 JVM_NativePath(char *);
1280
1281 /*
1282 * JVM I/O error codes
1283 */
1284 #define JVM_EEXIST -100
1285
1286 /*
1287 * Open a file descriptor. This function returns a negative error code
1288 * on error, and a non-negative integer that is the file descriptor on
1289 * success.
1290 */
1291 JNIEXPORT jint JNICALL
1292 JVM_Open(const char *fname, jint flags, jint mode);
1293
1294 /*
1295 * Close a file descriptor. This function returns -1 on error, and 0
1296 * on success.
1297 *
1298 * fd the file descriptor to close.
1299 */
1300 JNIEXPORT jint JNICALL
1301 JVM_Close(jint fd);
1302
1303 /*
1304 * Read data from a file decriptor into a char array.
1305 *
1306 * fd the file descriptor to read from.
1307 * buf the buffer where to put the read data.
1308 * nbytes the number of bytes to read.
1309 *
1310 * This function returns -1 on error, and 0 on success.
1311 */
1312 JNIEXPORT jint JNICALL
1313 JVM_Read(jint fd, char *buf, jint nbytes);
1314
1315 /*
1316 * Write data from a char array to a file decriptor.
1317 *
1318 * fd the file descriptor to read from.
1319 * buf the buffer from which to fetch the data.
1320 * nbytes the number of bytes to write.
1321 *
1322 * This function returns -1 on error, and 0 on success.
1323 */
1324 JNIEXPORT jint JNICALL
1325 JVM_Write(jint fd, char *buf, jint nbytes);
1326
1327 /*
1328 * Returns the number of bytes available for reading from a given file
1329 * descriptor
1330 */
1331 JNIEXPORT jint JNICALL
1332 JVM_Available(jint fd, jlong *pbytes);
1333
1334 /*
1335 * Move the file descriptor pointer from whence by offset.
1336 *
1337 * fd the file descriptor to move.
1338 * offset the number of bytes to move it by.
1339 * whence the start from where to move it.
1340 *
1341 * This function returns the resulting pointer location.
1342 */
1343 JNIEXPORT jlong JNICALL
1344 JVM_Lseek(jint fd, jlong offset, jint whence);
1345
1346 /*
1347 * Set the length of the file associated with the given descriptor to the given
1348 * length. If the new length is longer than the current length then the file
1349 * is extended; the contents of the extended portion are not defined. The
1350 * value of the file pointer is undefined after this procedure returns.
1351 */
1352 JNIEXPORT jint JNICALL
1353 JVM_SetLength(jint fd, jlong length);
1354
1355 /*
1356 * Synchronize the file descriptor's in memory state with that of the
1357 * physical device. Return of -1 is an error, 0 is OK.
1358 */
1359 JNIEXPORT jint JNICALL
1360 JVM_Sync(jint fd);
1361
1362 /*
1363 * Networking library support
1364 */
1365
1366 JNIEXPORT jint JNICALL
1367 JVM_InitializeSocketLibrary(void);
1368
1369 struct sockaddr;
1370
1371 JNIEXPORT jint JNICALL
1372 JVM_Socket(jint domain, jint type, jint protocol);
1373
1374 JNIEXPORT jint JNICALL
1375 JVM_SocketClose(jint fd);
1376
1377 JNIEXPORT jint JNICALL
1378 JVM_SocketShutdown(jint fd, jint howto);
1379
1380 JNIEXPORT jint JNICALL
1381 JVM_Recv(jint fd, char *buf, jint nBytes, jint flags);
1382
1383 JNIEXPORT jint JNICALL
1384 JVM_Send(jint fd, char *buf, jint nBytes, jint flags);
1385
1386 JNIEXPORT jint JNICALL
1387 JVM_Timeout(int fd, long timeout);
1388
1389 JNIEXPORT jint JNICALL
1390 JVM_Listen(jint fd, jint count);
1391
1392 JNIEXPORT jint JNICALL
1393 JVM_Connect(jint fd, struct sockaddr *him, jint len);
1394
1395 JNIEXPORT jint JNICALL
1396 JVM_Bind(jint fd, struct sockaddr *him, jint len);
1397
1398 JNIEXPORT jint JNICALL
1399 JVM_Accept(jint fd, struct sockaddr *him, jint *len);
1400
1401 JNIEXPORT jint JNICALL
1402 JVM_RecvFrom(jint fd, char *buf, int nBytes,
1403 int flags, struct sockaddr *from, int *fromlen);
1404
1405 JNIEXPORT jint JNICALL
1406 JVM_SendTo(jint fd, char *buf, int len,
1407 int flags, struct sockaddr *to, int tolen);
1408
1409 JNIEXPORT jint JNICALL
1410 JVM_SocketAvailable(jint fd, jint *result);
1411
1412
1413 JNIEXPORT jint JNICALL
1414 JVM_GetSockName(jint fd, struct sockaddr *him, int *len);
1415
1416 JNIEXPORT jint JNICALL
1417 JVM_GetSockOpt(jint fd, int level, int optname, char *optval, int *optlen);
1418
1419 JNIEXPORT jint JNICALL
1420 JVM_SetSockOpt(jint fd, int level, int optname, const char *optval, int optlen);
1421
1422 JNIEXPORT int JNICALL
1423 JVM_GetHostName(char* name, int namelen);
1424
1425 /*
1426 * The standard printing functions supported by the Java VM. (Should they
1427 * be renamed to JVM_* in the future?
1428 */
1429
1430 /*
1431 * BE CAREFUL! The following functions do not implement the
1432 * full feature set of standard C printf formats.
1433 */
1434 JNIEXPORT int
1435 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1436
1437 JNIEXPORT int
1438 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1439
1440 JNIEXPORT int
1441 jio_fprintf(FILE *, const char *fmt, ...);
1442
1443 JNIEXPORT int
1444 jio_vfprintf(FILE *, const char *fmt, va_list args);
1445
1446
1447 JNIEXPORT void * JNICALL
1448 JVM_RawMonitorCreate(void);
1449
1450 JNIEXPORT void JNICALL
1451 JVM_RawMonitorDestroy(void *mon);
1452
1453 JNIEXPORT jint JNICALL
1454 JVM_RawMonitorEnter(void *mon);
1455
1456 JNIEXPORT void JNICALL
1457 JVM_RawMonitorExit(void *mon);
1458
1459 /*
1460 * java.lang.reflect.Method
1461 */
1462 JNIEXPORT jobject JNICALL
1463 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
1464
1465 /*
1466 * java.lang.reflect.Constructor
1467 */
1468 JNIEXPORT jobject JNICALL
1469 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
1470
1471 /*
1472 * java.lang.management support
1473 */
1474 JNIEXPORT void* JNICALL
1475 JVM_GetManagement(jint version);
1476
1477 /*
1478 * com.sun.tools.attach.VirtualMachine support
1479 *
1480 * Initialize the agent properties with the properties maintained in the VM.
1481 */
1482 JNIEXPORT jobject JNICALL
1483 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
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 /* HotSpot Express VM version string:
1554 * <major>.<minor>-bxx[-<identifier>][-<debug_flavor>]
1555 */
1556 unsigned int jvm_version; /* Consists of major.minor.0.build */
1557 unsigned int update_version : 8; /* 0 in HotSpot Express VM */
1558 unsigned int special_update_version : 8; /* 0 in HotSpot Express VM */
1559 unsigned int reserved1 : 16;
1560 unsigned int reserved2;
1561
1562 /* The following bits represents JVM supports that JDK has dependency on.
1563 * JDK can use these bits to determine which JVM version
1564 * and support it has to maintain runtime compatibility.
1565 *
1566 * When a new bit is added in a minor or update release, make sure
1567 * the new bit is also added in the main/baseline.
1568 */
1569 unsigned int is_attachable : 1;
1570 unsigned int : 31;
1571 unsigned int : 32;
1572 unsigned int : 32;
1573 } jvm_version_info;
1574
1575 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1576 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1577 // Micro version is 0 in HotSpot Express VM (set in jvm.cpp).
1578 #define JVM_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1579 /* Build number is available in all HotSpot Express VM builds.
1580 * It is defined in make/hotspot_version file.
1581 */
1582 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF))
1583
1584 JNIEXPORT void JNICALL
1585 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size);
1586
1587 typedef struct {
1588 // Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx
1589 unsigned int jdk_version; /* Consists of major, minor, micro (n.n.n) */
1590 /* and build number (xx) */
1591 unsigned int update_version : 8; /* Update release version (uu) */
1592 unsigned int special_update_version : 8; /* Special update release version (c)*/
1593 unsigned int reserved1 : 16;
1594 unsigned int reserved2;
1595
1596 /* The following bits represents new JDK supports that VM has dependency on.
1597 * VM implementation can use these bits to determine which JDK version
1598 * and support it has to maintain runtime compatibility.
1599 *
1600 * When a new bit is added in a minor or update release, make sure
1601 * the new bit is also added in the main/baseline.
1602 */
1603 unsigned int thread_park_blocker : 1;
1604 unsigned int post_vm_init_hook_enabled : 1;
1605 unsigned int pending_list_uses_discovered_field : 1;
1606 unsigned int : 29;
1607 unsigned int : 32;
1608 unsigned int : 32;
1609 } jdk_version_info;
1610
1611 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1612 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1613 #define JDK_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1614
1615 /* Build number is available only for RE build (i.e. JDK_BUILD_NUMBER is set to bNN)
1616 * It will be zero for internal builds.
1617 */
1618 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF))
1619
1620 /*
1621 * This is the function JDK_GetVersionInfo0 defined in libjava.so
1622 * that is dynamically looked up by JVM.
1623 */
1624 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size);
1625
1626 /*
1627 * This structure is used by the launcher to get the default thread
1628 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1629 * version of 1.1. As it is not supported otherwise, it has been removed
1630 * from jni.h
1631 */
1632 typedef struct JDK1_1InitArgs {
1633 jint version;
1634
1635 char **properties;
1636 jint checkSource;
1637 jint nativeStackSize;
1638 jint javaStackSize;
1639 jint minHeapSize;
1640 jint maxHeapSize;
1641 jint verifyMode;
1642 char *classpath;
1643
1644 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1645 void (JNICALL *exit)(jint code);
1646 void (JNICALL *abort)(void);
1647
1648 jint enableClassGC;
1649 jint enableVerboseGC;
1650 jint disableAsyncGC;
1651 jint verbose;
1652 jboolean debugging;
1653 jint debugPort;
1654 } JDK1_1InitArgs;
1655
1656 #ifdef __cplusplus
1657 } /* extern "C" */
1658 #endif /* __cplusplus */
1659
1660 #endif /* !_JAVASOFT_JVM_H_ */
1661
1662 #endif // SHARE_VM_PRIMS_JVM_H