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 JNIEXPORT void JNICALL
142 JVM_Halt(jint code);
143
144 JNIEXPORT void JNICALL
145 JVM_GC(void);
146
147 /* Returns the number of real-time milliseconds that have elapsed since the
148 * least-recently-inspected heap object was last inspected by the garbage
149 * collector.
150 *
151 * For simple stop-the-world collectors this value is just the time
152 * since the most recent collection. For generational collectors it is the
153 * time since the oldest generation was most recently collected. Other
154 * collectors are free to return a pessimistic estimate of the elapsed time, or
155 * simply the time since the last full collection was performed.
156 *
157 * Note that in the presence of reference objects, a given object that is no
158 * longer strongly reachable may have to be inspected multiple times before it
159 * can be reclaimed.
160 */
161 JNIEXPORT jlong JNICALL
162 JVM_MaxObjectInspectionAge(void);
163
164 JNIEXPORT jlong JNICALL
165 JVM_TotalMemory(void);
166
167 JNIEXPORT jlong JNICALL
168 JVM_FreeMemory(void);
169
170 JNIEXPORT jlong JNICALL
171 JVM_MaxMemory(void);
172
173 JNIEXPORT jint JNICALL
174 JVM_ActiveProcessorCount(void);
175
176 JNIEXPORT void * JNICALL
177 JVM_LoadLibrary(const char *name);
178
179 JNIEXPORT void JNICALL
180 JVM_UnloadLibrary(void * handle);
181
182 JNIEXPORT void * JNICALL
183 JVM_FindLibraryEntry(void *handle, const char *name);
184
185 JNIEXPORT jboolean JNICALL
186 JVM_IsSupportedJNIVersion(jint version);
187
188 /*
189 * java.lang.Throwable
190 */
191 JNIEXPORT void JNICALL
192 JVM_FillInStackTrace(JNIEnv *env, jobject throwable);
193
194 JNIEXPORT jint JNICALL
195 JVM_GetStackTraceDepth(JNIEnv *env, jobject throwable);
196
197 JNIEXPORT jobject JNICALL
198 JVM_GetStackTraceElement(JNIEnv *env, jobject throwable, jint index);
199
200 /*
201 * java.lang.Thread
202 */
203 JNIEXPORT void JNICALL
204 JVM_StartThread(JNIEnv *env, jobject thread);
205
206 JNIEXPORT void JNICALL
207 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception);
208
209 JNIEXPORT jboolean JNICALL
210 JVM_IsThreadAlive(JNIEnv *env, jobject thread);
211
212 JNIEXPORT void JNICALL
213 JVM_SuspendThread(JNIEnv *env, jobject thread);
214
215 JNIEXPORT void JNICALL
216 JVM_ResumeThread(JNIEnv *env, jobject thread);
217
218 JNIEXPORT void JNICALL
219 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio);
220
221 JNIEXPORT void JNICALL
222 JVM_Yield(JNIEnv *env, jclass threadClass);
223
224 JNIEXPORT void JNICALL
225 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis);
226
227 JNIEXPORT jobject JNICALL
228 JVM_CurrentThread(JNIEnv *env, jclass threadClass);
229
230 JNIEXPORT jint JNICALL
231 JVM_CountStackFrames(JNIEnv *env, jobject thread);
232
233 JNIEXPORT void JNICALL
234 JVM_Interrupt(JNIEnv *env, jobject thread);
235
236 JNIEXPORT jboolean JNICALL
237 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted);
238
239 JNIEXPORT jboolean JNICALL
240 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);
241
242 JNIEXPORT void JNICALL
243 JVM_DumpAllStacks(JNIEnv *env, jclass unused);
244
245 JNIEXPORT jobjectArray JNICALL
246 JVM_GetAllThreads(JNIEnv *env, jclass dummy);
247
248 JNIEXPORT void JNICALL
249 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name);
250
251 /* getStackTrace() and getAllStackTraces() method */
252 JNIEXPORT jobjectArray JNICALL
253 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
254
255 /*
256 * java.lang.SecurityManager
257 */
258 JNIEXPORT jclass JNICALL
259 JVM_CurrentLoadedClass(JNIEnv *env);
260
261 JNIEXPORT jobject JNICALL
262 JVM_CurrentClassLoader(JNIEnv *env);
263
264 JNIEXPORT jobjectArray JNICALL
265 JVM_GetClassContext(JNIEnv *env);
266
267 JNIEXPORT jint JNICALL
268 JVM_ClassDepth(JNIEnv *env, jstring name);
269
270 JNIEXPORT jint JNICALL
271 JVM_ClassLoaderDepth(JNIEnv *env);
272
273 /*
274 * java.lang.Package
275 */
276 JNIEXPORT jstring JNICALL
277 JVM_GetSystemPackage(JNIEnv *env, jstring name);
278
279 JNIEXPORT jobjectArray JNICALL
280 JVM_GetSystemPackages(JNIEnv *env);
281
282 /*
283 * java.io.ObjectInputStream
284 */
285 JNIEXPORT jobject JNICALL
286 JVM_LatestUserDefinedLoader(JNIEnv *env);
287
288 /*
289 * java.lang.reflect.Array
290 */
291 JNIEXPORT jint JNICALL
292 JVM_GetArrayLength(JNIEnv *env, jobject arr);
293
294 JNIEXPORT jobject JNICALL
295 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
296
297 JNIEXPORT jvalue JNICALL
298 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
299
300 JNIEXPORT void JNICALL
301 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
302
303 JNIEXPORT void JNICALL
304 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
305 unsigned char vCode);
306
307 JNIEXPORT jobject JNICALL
308 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
309
310 JNIEXPORT jobject JNICALL
311 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
312
313 /*
314 * java.lang.Class and java.lang.ClassLoader
315 */
316
317 #define JVM_CALLER_DEPTH -1
318
319 /*
320 * Returns the class in which the code invoking the native method
321 * belongs.
322 *
323 * Note that in JDK 1.1, native methods did not create a frame.
324 * In 1.2, they do. Therefore native methods like Class.forName
325 * can no longer look at the current frame for the caller class.
326 */
327 JNIEXPORT jclass JNICALL
328 JVM_GetCallerClass(JNIEnv *env, int n);
329
330 /*
331 * Find primitive classes
332 * utf: class name
333 */
334 JNIEXPORT jclass JNICALL
335 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
336
337 /*
338 * Find a class from a given class loader. Throw ClassNotFoundException
339 * or NoClassDefFoundError depending on the value of the last
340 * argument.
341 */
342 JNIEXPORT jclass JNICALL
343 JVM_FindClassFromClassLoader(JNIEnv *env, const char *name, jboolean init,
344 jobject loader, jboolean throwError);
345
346 /*
347 * Find a class from a boot class loader. Returns NULL if class not found.
348 */
349 JNIEXPORT jclass JNICALL
350 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
351
352 /*
353 * Find a class from a given class loader. Throws ClassNotFoundException.
354 * name: name of class
355 * init: whether initialization is done
356 * loader: class loader to look up the class. This may not be the same as the caller's
357 * class loader.
358 * caller: initiating class. The initiating class may be null when a security
359 * manager is not installed.
360 */
361 JNIEXPORT jclass JNICALL
362 JVM_FindClassFromCaller(JNIEnv *env, const char *name, jboolean init,
363 jobject loader, jclass caller);
364
365 /*
366 * Find a class from a given class.
367 */
368 JNIEXPORT jclass JNICALL
369 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
370 jclass from);
371
372 /* Find a loaded class cached by the VM */
373 JNIEXPORT jclass JNICALL
374 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
375
376 /* Define a class */
377 JNIEXPORT jclass JNICALL
378 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
379 jsize len, jobject pd);
380
381 /* Define a class with a source (added in JDK1.5) */
382 JNIEXPORT jclass JNICALL
383 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
384 const jbyte *buf, jsize len, jobject pd,
385 const char *source);
386
387 /* Define a class with a source with conditional verification (added HSX 14)
388 * -Xverify:all will verify anyway, -Xverify:none will not verify,
389 * -Xverify:remote (default) will obey this conditional
390 * i.e. true = should_verify_class
391 */
392 JNIEXPORT jclass JNICALL
393 JVM_DefineClassWithSourceCond(JNIEnv *env, const char *name,
394 jobject loader, const jbyte *buf,
395 jsize len, jobject pd, const char *source,
396 jboolean verify);
397
398 /*
399 * Reflection support functions
400 */
401
402 JNIEXPORT jstring JNICALL
403 JVM_GetClassName(JNIEnv *env, jclass cls);
404
405 JNIEXPORT jobjectArray JNICALL
406 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
407
408 JNIEXPORT jboolean JNICALL
409 JVM_IsInterface(JNIEnv *env, jclass cls);
410
411 JNIEXPORT jobjectArray JNICALL
412 JVM_GetClassSigners(JNIEnv *env, jclass cls);
413
414 JNIEXPORT void JNICALL
415 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
416
417 JNIEXPORT jobject JNICALL
418 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
419
420 JNIEXPORT jboolean JNICALL
421 JVM_IsArrayClass(JNIEnv *env, jclass cls);
422
423 JNIEXPORT jboolean JNICALL
424 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
425
426 JNIEXPORT jint JNICALL
427 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
428
429 JNIEXPORT jobjectArray JNICALL
430 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
431
432 JNIEXPORT jclass JNICALL
433 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
434
435 /* Generics support (JDK 1.5) */
436 JNIEXPORT jstring JNICALL
437 JVM_GetClassSignature(JNIEnv *env, jclass cls);
438
439 /* Annotations support (JDK 1.5) */
440 JNIEXPORT jbyteArray JNICALL
441 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
442
443 /* Annotations support (JDK 1.6) */
444
445 /* Type use annotations support (JDK 1.8) */
446
447 JNIEXPORT jbyteArray JNICALL
448 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls);
449
450 // field is a handle to a java.lang.reflect.Field object
451 JNIEXPORT jbyteArray JNICALL
452 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field);
453
454 // method is a handle to a java.lang.reflect.Method object
455 JNIEXPORT jbyteArray JNICALL
456 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method);
457
458 /*
459 * New (JDK 1.4) reflection implementation
460 */
461
462 JNIEXPORT jobjectArray JNICALL
463 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
464
465 JNIEXPORT jobjectArray JNICALL
466 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
467
468 JNIEXPORT jobjectArray JNICALL
469 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
470
471 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
472 This returns the access flags for the class as specified in the
473 class file rather than searching the InnerClasses attribute (if
474 present) to find the source-level access flags. Only the values of
475 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
476 valid. */
477 JNIEXPORT jint JNICALL
478 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
479
480 /*
481 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
482 */
483
484 JNIEXPORT jobject JNICALL
485 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
486
487 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
488 (JNIEnv *env, jobject obj, jobject unused);
489
490 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
491 (JNIEnv *env, jobject obj, jobject unused, jint index);
492
493 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
494 (JNIEnv *env, jobject obj, jobject unused, jint index);
495
496 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
497 (JNIEnv *env, jobject obj, jobject unused, jint index);
498
499 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
500 (JNIEnv *env, jobject obj, jobject unused, jint index);
501
502 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
503 (JNIEnv *env, jobject obj, jobject unused, jint index);
504
505 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
506 (JNIEnv *env, jobject obj, jobject unused, jint index);
507
508 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
509 (JNIEnv *env, jobject obj, jobject unused, jint index);
510
511 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
512 (JNIEnv *env, jobject obj, jobject unused, jint index);
513
514 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
515 (JNIEnv *env, jobject obj, jobject unused, jint index);
516
517 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
518 (JNIEnv *env, jobject obj, jobject unused, jint index);
519
520 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
521 (JNIEnv *env, jobject obj, jobject unused, jint index);
522
523 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
524 (JNIEnv *env, jobject obj, jobject unused, jint index);
525
526 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
527 (JNIEnv *env, jobject obj, jobject unused, jint index);
528
529 /*
530 * java.security.*
531 */
532
533 JNIEXPORT jobject JNICALL
534 JVM_DoPrivileged(JNIEnv *env, jclass cls,
535 jobject action, jobject context, jboolean wrapException);
536
537 JNIEXPORT jobject JNICALL
538 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
539
540 JNIEXPORT jobject JNICALL
541 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
542
543 /*
544 * Signal support, used to implement the shutdown sequence. Every VM must
545 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
546 * (^C) and the latter for external termination (kill, system shutdown, etc.).
547 * Other platform-dependent signal values may also be supported.
548 */
549
550 JNIEXPORT void * JNICALL
551 JVM_RegisterSignal(jint sig, void *handler);
552
553 JNIEXPORT jboolean JNICALL
554 JVM_RaiseSignal(jint sig);
555
556 JNIEXPORT jint JNICALL
557 JVM_FindSignal(const char *name);
558
559 /*
560 * Retrieve the assertion directives for the specified class.
561 */
562 JNIEXPORT jboolean JNICALL
563 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
564
565 /*
566 * Retrieve the assertion directives from the VM.
567 */
568 JNIEXPORT jobject JNICALL
569 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
570
571 /*
572 * java.util.concurrent.atomic.AtomicLong
573 */
574 JNIEXPORT jboolean JNICALL
575 JVM_SupportsCX8(void);
576
577 /*
578 * com.sun.dtrace.jsdt support
579 */
580
581 #define JVM_TRACING_DTRACE_VERSION 1
582
583 /*
584 * Structure to pass one probe description to JVM.
585 *
586 * The VM will overwrite the definition of the referenced method with
587 * code that will fire the probe.
588 */
589 typedef struct {
590 jmethodID method;
591 jstring function;
592 jstring name;
593 void* reserved[4]; // for future use
594 } JVM_DTraceProbe;
595
596 /**
597 * Encapsulates the stability ratings for a DTrace provider field
598 */
599 typedef struct {
600 jint nameStability;
601 jint dataStability;
602 jint dependencyClass;
603 } JVM_DTraceInterfaceAttributes;
604
605 /*
606 * Structure to pass one provider description to JVM
607 */
608 typedef struct {
609 jstring name;
610 JVM_DTraceProbe* probes;
611 jint probe_count;
612 JVM_DTraceInterfaceAttributes providerAttributes;
613 JVM_DTraceInterfaceAttributes moduleAttributes;
614 JVM_DTraceInterfaceAttributes functionAttributes;
615 JVM_DTraceInterfaceAttributes nameAttributes;
616 JVM_DTraceInterfaceAttributes argsAttributes;
617 void* reserved[4]; // for future use
618 } JVM_DTraceProvider;
619
620 /*
621 * Get the version number the JVM was built with
622 */
623 JNIEXPORT jint JNICALL
624 JVM_DTraceGetVersion(JNIEnv* env);
625
626 /*
627 * Register new probe with given signature, return global handle
628 *
629 * The version passed in is the version that the library code was
630 * built with.
631 */
632 JNIEXPORT jlong JNICALL
633 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name,
634 jint providers_count, JVM_DTraceProvider* providers);
635
636 /*
637 * Check JSDT probe
638 */
639 JNIEXPORT jboolean JNICALL
640 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method);
641
642 /*
643 * Destroy custom DOF
644 */
645 JNIEXPORT void JNICALL
646 JVM_DTraceDispose(JNIEnv* env, jlong handle);
647
648 /*
649 * Check to see if DTrace is supported by OS
650 */
651 JNIEXPORT jboolean JNICALL
652 JVM_DTraceIsSupported(JNIEnv* env);
653
654 /*************************************************************************
655 PART 2: Support for the Verifier and Class File Format Checker
656 ************************************************************************/
657 /*
658 * Return the class name in UTF format. The result is valid
659 * until JVM_ReleaseUTf is called.
660 *
661 * The caller must treat the string as a constant and not modify it
662 * in any way.
663 */
664 JNIEXPORT const char * JNICALL
665 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
666
667 /*
668 * Returns the constant pool types in the buffer provided by "types."
669 */
670 JNIEXPORT void JNICALL
671 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
672
673 /*
674 * Returns the number of Constant Pool entries.
675 */
676 JNIEXPORT jint JNICALL
677 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
678
679 /*
680 * Returns the number of *declared* fields or methods.
681 */
682 JNIEXPORT jint JNICALL
683 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
684
685 JNIEXPORT jint JNICALL
686 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
687
688 /*
689 * Returns the CP indexes of exceptions raised by a given method.
690 * Places the result in the given buffer.
691 *
692 * The method is identified by method_index.
693 */
694 JNIEXPORT void JNICALL
695 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
696 unsigned short *exceptions);
697 /*
698 * Returns the number of exceptions raised by a given method.
699 * The method is identified by method_index.
700 */
701 JNIEXPORT jint JNICALL
702 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
703
704 /*
705 * Returns the byte code sequence of a given method.
706 * Places the result in the given buffer.
707 *
708 * The method is identified by method_index.
709 */
710 JNIEXPORT void JNICALL
711 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
712 unsigned char *code);
713
714 /*
715 * Returns the length of the byte code sequence of a given method.
716 * The method is identified by method_index.
717 */
718 JNIEXPORT jint JNICALL
719 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
720
721 /*
722 * A structure used to a capture exception table entry in a Java method.
723 */
724 typedef struct {
725 jint start_pc;
726 jint end_pc;
727 jint handler_pc;
728 jint catchType;
729 } JVM_ExceptionTableEntryType;
730
731 /*
732 * Returns the exception table entry at entry_index of a given method.
733 * Places the result in the given buffer.
734 *
735 * The method is identified by method_index.
736 */
737 JNIEXPORT void JNICALL
738 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
739 jint entry_index,
740 JVM_ExceptionTableEntryType *entry);
741
742 /*
743 * Returns the length of the exception table of a given method.
744 * The method is identified by method_index.
745 */
746 JNIEXPORT jint JNICALL
747 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
748
749 /*
750 * Returns the modifiers of a given field.
751 * The field is identified by field_index.
752 */
753 JNIEXPORT jint JNICALL
754 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
755
756 /*
757 * Returns the modifiers of a given method.
758 * The method is identified by method_index.
759 */
760 JNIEXPORT jint JNICALL
761 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
762
763 /*
764 * Returns the number of local variables of a given method.
765 * The method is identified by method_index.
766 */
767 JNIEXPORT jint JNICALL
768 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
769
770 /*
771 * Returns the number of arguments (including this pointer) of a given method.
772 * The method is identified by method_index.
773 */
774 JNIEXPORT jint JNICALL
775 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
776
777 /*
778 * Returns the maximum amount of stack (in words) used by a given method.
779 * The method is identified by method_index.
780 */
781 JNIEXPORT jint JNICALL
782 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
783
784 /*
785 * Is a given method a constructor.
786 * The method is identified by method_index.
787 */
788 JNIEXPORT jboolean JNICALL
789 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
790
791 /*
792 * Is the given method generated by the VM.
793 * The method is identified by method_index.
794 */
795 JNIEXPORT jboolean JNICALL
796 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index);
797
798 /*
799 * Returns the name of a given method in UTF format.
800 * The result remains valid until JVM_ReleaseUTF is called.
801 *
802 * The caller must treat the string as a constant and not modify it
803 * in any way.
804 */
805 JNIEXPORT const char * JNICALL
806 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
807
808 /*
809 * Returns the signature of a given method in UTF format.
810 * The result remains valid until JVM_ReleaseUTF is called.
811 *
812 * The caller must treat the string as a constant and not modify it
813 * in any way.
814 */
815 JNIEXPORT const char * JNICALL
816 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
817
818 /*
819 * Returns the name of the field refered to at a given constant pool
820 * index.
821 *
822 * The result is in UTF format and remains valid until JVM_ReleaseUTF
823 * is called.
824 *
825 * The caller must treat the string as a constant and not modify it
826 * in any way.
827 */
828 JNIEXPORT const char * JNICALL
829 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
830
831 /*
832 * Returns the name of the method refered to at a given constant pool
833 * index.
834 *
835 * The result is in UTF format and remains valid until JVM_ReleaseUTF
836 * is called.
837 *
838 * The caller must treat the string as a constant and not modify it
839 * in any way.
840 */
841 JNIEXPORT const char * JNICALL
842 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
843
844 /*
845 * Returns the signature of the method refered to at a given constant pool
846 * index.
847 *
848 * The result is in UTF format and remains valid until JVM_ReleaseUTF
849 * is called.
850 *
851 * The caller must treat the string as a constant and not modify it
852 * in any way.
853 */
854 JNIEXPORT const char * JNICALL
855 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
856
857 /*
858 * Returns the signature of the field refered to at a given constant pool
859 * index.
860 *
861 * The result is in UTF format and remains valid until JVM_ReleaseUTF
862 * is called.
863 *
864 * The caller must treat the string as a constant and not modify it
865 * in any way.
866 */
867 JNIEXPORT const char * JNICALL
868 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
869
870 /*
871 * Returns the class name refered to at a given constant pool index.
872 *
873 * The result is in UTF format and remains valid until JVM_ReleaseUTF
874 * is called.
875 *
876 * The caller must treat the string as a constant and not modify it
877 * in any way.
878 */
879 JNIEXPORT const char * JNICALL
880 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
881
882 /*
883 * Returns the class name refered to at a given constant pool index.
884 *
885 * The constant pool entry must refer to a CONSTANT_Fieldref.
886 *
887 * The result is in UTF format and remains valid until JVM_ReleaseUTF
888 * is called.
889 *
890 * The caller must treat the string as a constant and not modify it
891 * in any way.
892 */
893 JNIEXPORT const char * JNICALL
894 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
895
896 /*
897 * Returns the class name refered to at a given constant pool index.
898 *
899 * The constant pool entry must refer to CONSTANT_Methodref or
900 * CONSTANT_InterfaceMethodref.
901 *
902 * The result is in UTF format and remains valid until JVM_ReleaseUTF
903 * is called.
904 *
905 * The caller must treat the string as a constant and not modify it
906 * in any way.
907 */
908 JNIEXPORT const char * JNICALL
909 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
910
911 /*
912 * Returns the modifiers of a field in calledClass. The field is
913 * referred to in class cb at constant pool entry index.
914 *
915 * The caller must treat the string as a constant and not modify it
916 * in any way.
917 *
918 * Returns -1 if the field does not exist in calledClass.
919 */
920 JNIEXPORT jint JNICALL
921 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
922
923 /*
924 * Returns the modifiers of a method in calledClass. The method is
925 * referred to in class cb at constant pool entry index.
926 *
927 * Returns -1 if the method does not exist in calledClass.
928 */
929 JNIEXPORT jint JNICALL
930 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
931
932 /*
933 * Releases the UTF string obtained from the VM.
934 */
935 JNIEXPORT void JNICALL
936 JVM_ReleaseUTF(const char *utf);
937
938 /*
939 * Compare if two classes are in the same package.
940 */
941 JNIEXPORT jboolean JNICALL
942 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
943
944 /* Constants in class files */
945
946 #define JVM_ACC_PUBLIC 0x0001 /* visible to everyone */
947 #define JVM_ACC_PRIVATE 0x0002 /* visible only to the defining class */
948 #define JVM_ACC_PROTECTED 0x0004 /* visible to subclasses */
949 #define JVM_ACC_STATIC 0x0008 /* instance variable is static */
950 #define JVM_ACC_FINAL 0x0010 /* no further subclassing, overriding */
951 #define JVM_ACC_SYNCHRONIZED 0x0020 /* wrap method call in monitor lock */
952 #define JVM_ACC_SUPER 0x0020 /* funky handling of invokespecial */
953 #define JVM_ACC_VOLATILE 0x0040 /* can not cache in registers */
954 #define JVM_ACC_BRIDGE 0x0040 /* bridge method generated by compiler */
955 #define JVM_ACC_TRANSIENT 0x0080 /* not persistent */
956 #define JVM_ACC_VARARGS 0x0080 /* method declared with variable number of args */
957 #define JVM_ACC_NATIVE 0x0100 /* implemented in C */
958 #define JVM_ACC_INTERFACE 0x0200 /* class is an interface */
959 #define JVM_ACC_ABSTRACT 0x0400 /* no definition provided */
960 #define JVM_ACC_STRICT 0x0800 /* strict floating point */
961 #define JVM_ACC_SYNTHETIC 0x1000 /* compiler-generated class, method or field */
962 #define JVM_ACC_ANNOTATION 0x2000 /* annotation type */
963 #define JVM_ACC_ENUM 0x4000 /* field is declared as element of enum */
964
965 #define JVM_ACC_PUBLIC_BIT 0
966 #define JVM_ACC_PRIVATE_BIT 1
967 #define JVM_ACC_PROTECTED_BIT 2
968 #define JVM_ACC_STATIC_BIT 3
969 #define JVM_ACC_FINAL_BIT 4
970 #define JVM_ACC_SYNCHRONIZED_BIT 5
971 #define JVM_ACC_SUPER_BIT 5
972 #define JVM_ACC_VOLATILE_BIT 6
973 #define JVM_ACC_BRIDGE_BIT 6
974 #define JVM_ACC_TRANSIENT_BIT 7
975 #define JVM_ACC_VARARGS_BIT 7
976 #define JVM_ACC_NATIVE_BIT 8
977 #define JVM_ACC_INTERFACE_BIT 9
978 #define JVM_ACC_ABSTRACT_BIT 10
979 #define JVM_ACC_STRICT_BIT 11
980 #define JVM_ACC_SYNTHETIC_BIT 12
981 #define JVM_ACC_ANNOTATION_BIT 13
982 #define JVM_ACC_ENUM_BIT 14
983
984 // NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/utilities/ConstantTag.java
985 enum {
986 JVM_CONSTANT_Utf8 = 1,
987 JVM_CONSTANT_Unicode, /* unused */
988 JVM_CONSTANT_Integer,
989 JVM_CONSTANT_Float,
990 JVM_CONSTANT_Long,
991 JVM_CONSTANT_Double,
992 JVM_CONSTANT_Class,
993 JVM_CONSTANT_String,
994 JVM_CONSTANT_Fieldref,
995 JVM_CONSTANT_Methodref,
996 JVM_CONSTANT_InterfaceMethodref,
997 JVM_CONSTANT_NameAndType,
998 JVM_CONSTANT_MethodHandle = 15, // JSR 292
999 JVM_CONSTANT_MethodType = 16, // JSR 292
1000 //JVM_CONSTANT_(unused) = 17, // JSR 292 early drafts only
1001 JVM_CONSTANT_InvokeDynamic = 18, // JSR 292
1002 JVM_CONSTANT_ExternalMax = 18 // Last tag found in classfiles
1003 };
1004
1005 /* JVM_CONSTANT_MethodHandle subtypes */
1006 enum {
1007 JVM_REF_getField = 1,
1008 JVM_REF_getStatic = 2,
1009 JVM_REF_putField = 3,
1010 JVM_REF_putStatic = 4,
1011 JVM_REF_invokeVirtual = 5,
1012 JVM_REF_invokeStatic = 6,
1013 JVM_REF_invokeSpecial = 7,
1014 JVM_REF_newInvokeSpecial = 8,
1015 JVM_REF_invokeInterface = 9
1016 };
1017
1018 /* Used in the newarray instruction. */
1019
1020 #define JVM_T_BOOLEAN 4
1021 #define JVM_T_CHAR 5
1022 #define JVM_T_FLOAT 6
1023 #define JVM_T_DOUBLE 7
1024 #define JVM_T_BYTE 8
1025 #define JVM_T_SHORT 9
1026 #define JVM_T_INT 10
1027 #define JVM_T_LONG 11
1028
1029 /* JVM method signatures */
1030
1031 #define JVM_SIGNATURE_ARRAY '['
1032 #define JVM_SIGNATURE_BYTE 'B'
1033 #define JVM_SIGNATURE_CHAR 'C'
1034 #define JVM_SIGNATURE_CLASS 'L'
1035 #define JVM_SIGNATURE_ENDCLASS ';'
1036 #define JVM_SIGNATURE_ENUM 'E'
1037 #define JVM_SIGNATURE_FLOAT 'F'
1038 #define JVM_SIGNATURE_DOUBLE 'D'
1039 #define JVM_SIGNATURE_FUNC '('
1040 #define JVM_SIGNATURE_ENDFUNC ')'
1041 #define JVM_SIGNATURE_INT 'I'
1042 #define JVM_SIGNATURE_LONG 'J'
1043 #define JVM_SIGNATURE_SHORT 'S'
1044 #define JVM_SIGNATURE_VOID 'V'
1045 #define JVM_SIGNATURE_BOOLEAN 'Z'
1046
1047 /*
1048 * A function defined by the byte-code verifier and called by the VM.
1049 * This is not a function implemented in the VM.
1050 *
1051 * Returns JNI_FALSE if verification fails. A detailed error message
1052 * will be places in msg_buf, whose length is specified by buf_len.
1053 */
1054 typedef jboolean (*verifier_fn_t)(JNIEnv *env,
1055 jclass cb,
1056 char * msg_buf,
1057 jint buf_len);
1058
1059
1060 /*
1061 * Support for a VM-independent class format checker.
1062 */
1063 typedef struct {
1064 unsigned long code; /* byte code */
1065 unsigned long excs; /* exceptions */
1066 unsigned long etab; /* catch table */
1067 unsigned long lnum; /* line number */
1068 unsigned long lvar; /* local vars */
1069 } method_size_info;
1070
1071 typedef struct {
1072 unsigned int constants; /* constant pool */
1073 unsigned int fields;
1074 unsigned int methods;
1075 unsigned int interfaces;
1076 unsigned int fields2; /* number of static 2-word fields */
1077 unsigned int innerclasses; /* # of records in InnerClasses attr */
1078
1079 method_size_info clinit; /* memory used in clinit */
1080 method_size_info main; /* used everywhere else */
1081 } class_size_info;
1082
1083 /*
1084 * Functions defined in libjava.so to perform string conversions.
1085 *
1086 */
1087
1088 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str);
1089
1090 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b);
1091
1092 /* This is the function defined in libjava.so that performs class
1093 * format checks. This functions fills in size information about
1094 * the class file and returns:
1095 *
1096 * 0: good
1097 * -1: out of memory
1098 * -2: bad format
1099 * -3: unsupported version
1100 * -4: bad class name
1101 */
1102
1103 typedef jint (*check_format_fn_t)(char *class_name,
1104 unsigned char *data,
1105 unsigned int data_size,
1106 class_size_info *class_size,
1107 char *message_buffer,
1108 jint buffer_length,
1109 jboolean measure_only,
1110 jboolean check_relaxed);
1111
1112 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1113 JVM_ACC_FINAL | \
1114 JVM_ACC_SUPER | \
1115 JVM_ACC_INTERFACE | \
1116 JVM_ACC_ABSTRACT | \
1117 JVM_ACC_ANNOTATION | \
1118 JVM_ACC_ENUM | \
1119 JVM_ACC_SYNTHETIC)
1120
1121 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1122 JVM_ACC_PRIVATE | \
1123 JVM_ACC_PROTECTED | \
1124 JVM_ACC_STATIC | \
1125 JVM_ACC_FINAL | \
1126 JVM_ACC_VOLATILE | \
1127 JVM_ACC_TRANSIENT | \
1128 JVM_ACC_ENUM | \
1129 JVM_ACC_SYNTHETIC)
1130
1131 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1132 JVM_ACC_PRIVATE | \
1133 JVM_ACC_PROTECTED | \
1134 JVM_ACC_STATIC | \
1135 JVM_ACC_FINAL | \
1136 JVM_ACC_SYNCHRONIZED | \
1137 JVM_ACC_BRIDGE | \
1138 JVM_ACC_VARARGS | \
1139 JVM_ACC_NATIVE | \
1140 JVM_ACC_ABSTRACT | \
1141 JVM_ACC_STRICT | \
1142 JVM_ACC_SYNTHETIC)
1143
1144 /*
1145 * This is the function defined in libjava.so to perform path
1146 * canonicalization. VM call this function before opening jar files
1147 * to load system classes.
1148 *
1149 */
1150
1151 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len);
1152
1153 /*************************************************************************
1154 PART 3: I/O and Network Support
1155 ************************************************************************/
1156
1157 /*
1158 * Convert a pathname into native format. This function does syntactic
1159 * cleanup, such as removing redundant separator characters. It modifies
1160 * the given pathname string in place.
1161 */
1162 JNIEXPORT char * JNICALL
1163 JVM_NativePath(char *);
1164
1165 /*
1166 * The standard printing functions supported by the Java VM. (Should they
1167 * be renamed to JVM_* in the future?
1168 */
1169
1170 /* jio_snprintf() and jio_vsnprintf() behave like snprintf(3) and vsnprintf(3),
1171 * respectively, with the following differences:
1172 * - The string written to str is always zero-terminated, also in case of
1173 * truncation (count is too small to hold the result string), unless count
1174 * is 0. In case of truncation count-1 characters are written and '\0'
1175 * appendend.
1176 * - If count is too small to hold the whole string, -1 is returned across
1177 * all platforms. */
1178 JNIEXPORT int
1179 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1180
1181 JNIEXPORT int
1182 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1183
1184 JNIEXPORT int
1185 jio_fprintf(FILE *, const char *fmt, ...);
1186
1187 JNIEXPORT int
1188 jio_vfprintf(FILE *, const char *fmt, va_list args);
1189
1190
1191 JNIEXPORT void * JNICALL
1192 JVM_RawMonitorCreate(void);
1193
1194 JNIEXPORT void JNICALL
1195 JVM_RawMonitorDestroy(void *mon);
1196
1197 JNIEXPORT jint JNICALL
1198 JVM_RawMonitorEnter(void *mon);
1199
1200 JNIEXPORT void JNICALL
1201 JVM_RawMonitorExit(void *mon);
1202
1203 /*
1204 * java.lang.reflect.Method
1205 */
1206 JNIEXPORT jobject JNICALL
1207 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
1208
1209 /*
1210 * java.lang.reflect.Constructor
1211 */
1212 JNIEXPORT jobject JNICALL
1213 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
1214
1215 /*
1216 * java.lang.management support
1217 */
1218 JNIEXPORT void* JNICALL
1219 JVM_GetManagement(jint version);
1220
1221 /*
1222 * com.sun.tools.attach.VirtualMachine support
1223 *
1224 * Initialize the agent properties with the properties maintained in the VM.
1225 */
1226 JNIEXPORT jobject JNICALL
1227 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1228
1229 JNIEXPORT jstring JNICALL
1230 JVM_GetTemporaryDirectory(JNIEnv *env);
1231
1232 /* Generics reflection support.
1233 *
1234 * Returns information about the given class's EnclosingMethod
1235 * attribute, if present, or null if the class had no enclosing
1236 * method.
1237 *
1238 * If non-null, the returned array contains three elements. Element 0
1239 * is the java.lang.Class of which the enclosing method is a member,
1240 * and elements 1 and 2 are the java.lang.Strings for the enclosing
1241 * method's name and descriptor, respectively.
1242 */
1243 JNIEXPORT jobjectArray JNICALL
1244 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1245
1246 /* =========================================================================
1247 * The following defines a private JVM interface that the JDK can query
1248 * for the JVM version and capabilities. sun.misc.Version defines
1249 * the methods for getting the VM version and its capabilities.
1250 *
1251 * When a new bit is added, the following should be updated to provide
1252 * access to the new capability:
1253 * HS: JVM_GetVersionInfo and Abstract_VM_Version class
1254 * SDK: Version class
1255 *
1256 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for
1257 * JVM to query for the JDK version and capabilities.
1258 *
1259 * When a new bit is added, the following should be updated to provide
1260 * access to the new capability:
1261 * HS: JDK_Version class
1262 * SDK: JDK_GetVersionInfo0
1263 *
1264 * ==========================================================================
1265 */
1266 typedef struct {
1267 /* VM version string: follows the JDK release version naming convention */
1268 unsigned int jvm_version; /* <major_ver>.<minor_ver>.<micro_ver>[-<identifier>][-<debug_target>][-b<nn>] */
1269 unsigned int update_version : 8;
1270 unsigned int special_update_version : 8;
1271 unsigned int reserved1 : 16;
1272 unsigned int reserved2;
1273
1274 /* The following bits represents JVM supports that JDK has dependency on.
1275 * JDK can use these bits to determine which JVM version
1276 * and support it has to maintain runtime compatibility.
1277 *
1278 * When a new bit is added in a minor or update release, make sure
1279 * the new bit is also added in the main/baseline.
1280 */
1281 unsigned int is_attachable : 1;
1282 unsigned int : 31;
1283 unsigned int : 32;
1284 unsigned int : 32;
1285 } jvm_version_info;
1286
1287 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1288 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1289 #define JVM_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1290 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF))
1291
1292 JNIEXPORT void JNICALL
1293 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size);
1294
1295 typedef struct {
1296 // Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx
1297 unsigned int jdk_version; /* Consists of major, minor, micro (n.n.n) */
1298 /* and build number (xx) */
1299 unsigned int update_version : 8; /* Update release version (uu) */
1300 unsigned int special_update_version : 8; /* Special update release version (c)*/
1301 unsigned int reserved1 : 16;
1302 unsigned int reserved2;
1303
1304 /* The following bits represents new JDK supports that VM has dependency on.
1305 * VM implementation can use these bits to determine which JDK version
1306 * and support it has to maintain runtime compatibility.
1307 *
1308 * When a new bit is added in a minor or update release, make sure
1309 * the new bit is also added in the main/baseline.
1310 */
1311 unsigned int thread_park_blocker : 1;
1312 unsigned int post_vm_init_hook_enabled : 1;
1313 unsigned int pending_list_uses_discovered_field : 1;
1314 unsigned int : 29;
1315 unsigned int : 32;
1316 unsigned int : 32;
1317 } jdk_version_info;
1318
1319 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1320 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1321 #define JDK_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1322
1323 /* Build number is available only for RE build (i.e. JDK_BUILD_NUMBER is set to bNN)
1324 * It will be zero for internal builds.
1325 */
1326 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF))
1327
1328 /*
1329 * This is the function JDK_GetVersionInfo0 defined in libjava.so
1330 * that is dynamically looked up by JVM.
1331 */
1332 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size);
1333
1334 /*
1335 * This structure is used by the launcher to get the default thread
1336 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1337 * version of 1.1. As it is not supported otherwise, it has been removed
1338 * from jni.h
1339 */
1340 typedef struct JDK1_1InitArgs {
1341 jint version;
1342
1343 char **properties;
1344 jint checkSource;
1345 jint nativeStackSize;
1346 jint javaStackSize;
1347 jint minHeapSize;
1348 jint maxHeapSize;
1349 jint verifyMode;
1350 char *classpath;
1351
1352 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1353 void (JNICALL *exit)(jint code);
1354 void (JNICALL *abort)(void);
1355
1356 jint enableClassGC;
1357 jint enableVerboseGC;
1358 jint disableAsyncGC;
1359 jint verbose;
1360 jboolean debugging;
1361 jint debugPort;
1362 } JDK1_1InitArgs;
1363
1364 #ifdef __cplusplus
1365 } /* extern "C" */
1366 #endif /* __cplusplus */
1367
1368 #endif /* !_JAVASOFT_JVM_H_ */
1369
1370 #endif // SHARE_VM_PRIMS_JVM_H