Mercurial > jdk8-mips64-public > hotspot / file revision
src/share/vm/prims/jvm.h@e9be0e04635a
src/share/vm/prims/jvm.h
Tue, 06 Jan 2009 07:05:05 -0800
- author
- jmasa
- date
- Tue, 06 Jan 2009 07:05:05 -0800
- changeset 952
- e9be0e04635a
- parent 866
- a45484ea312d
- child 1313
- abe076e3636f
- permissions
- -rw-r--r--
6689653: JMapPerm fails with UseConcMarkSweepIncGC and compressed oops off
Summary: Added safe_object_iterate() for use by JMapPerm.
Reviewed-by: tonyp
1 /*
2 * Copyright 1997-2008 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
25 #ifndef _JAVASOFT_JVM_H_
26 #define _JAVASOFT_JVM_H_
28 // HotSpot integration note:
29 //
30 // This file and jvm.h used with the JDK are identical,
31 // except for the three includes removed below and the
32 // SUPPORT_OLD_REFLECTION sections cut out of the JDK's jvm.h.
34 // #include <sys/stat.h>
35 // #include "jni.h"
36 // #include "jvm_md.h"
39 #ifdef __cplusplus
40 extern "C" {
41 #endif
43 /*
44 * This file contains additional functions exported from the VM.
45 * These functions are complementary to the standard JNI support.
46 * There are three parts to this file:
47 *
48 * First, this file contains the VM-related functions needed by native
49 * libraries in the standard Java API. For example, the java.lang.Object
50 * class needs VM-level functions that wait for and notify monitors.
51 *
52 * Second, this file contains the functions and constant definitions
53 * needed by the byte code verifier and class file format checker.
54 * These functions allow the verifier and format checker to be written
55 * in a VM-independent way.
56 *
57 * Third, this file contains various I/O and nerwork operations needed
58 * by the standard Java I/O and network APIs.
59 */
61 /*
62 * Bump the version number when either of the following happens:
63 *
64 * 1. There is a change in JVM_* functions.
65 *
66 * 2. There is a change in the contract between VM and Java classes.
67 * For example, if the VM relies on a new private field in Thread
68 * class.
69 */
71 #define JVM_INTERFACE_VERSION 4
74 JNIEXPORT jint JNICALL
75 JVM_GetInterfaceVersion(void);
77 /*************************************************************************
78 PART 1: Functions for Native Libraries
79 ************************************************************************/
80 /*
81 * java.lang.Object
82 */
83 JNIEXPORT jint JNICALL
84 JVM_IHashCode(JNIEnv *env, jobject obj);
86 JNIEXPORT void JNICALL
87 JVM_MonitorWait(JNIEnv *env, jobject obj, jlong ms);
89 JNIEXPORT void JNICALL
90 JVM_MonitorNotify(JNIEnv *env, jobject obj);
92 JNIEXPORT void JNICALL
93 JVM_MonitorNotifyAll(JNIEnv *env, jobject obj);
95 JNIEXPORT jobject JNICALL
96 JVM_Clone(JNIEnv *env, jobject obj);
98 /*
99 * java.lang.String
100 */
101 JNIEXPORT jstring JNICALL
102 JVM_InternString(JNIEnv *env, jstring str);
104 /*
105 * java.lang.System
106 */
107 JNIEXPORT jlong JNICALL
108 JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored);
110 JNIEXPORT jlong JNICALL
111 JVM_NanoTime(JNIEnv *env, jclass ignored);
113 JNIEXPORT void JNICALL
114 JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos,
115 jobject dst, jint dst_pos, jint length);
117 JNIEXPORT jobject JNICALL
118 JVM_InitProperties(JNIEnv *env, jobject p);
120 /*
121 * java.io.File
122 */
123 JNIEXPORT void JNICALL
124 JVM_OnExit(void (*func)(void));
126 /*
127 * java.lang.Runtime
128 */
129 JNIEXPORT void JNICALL
130 JVM_Exit(jint code);
132 JNIEXPORT void JNICALL
133 JVM_Halt(jint code);
135 JNIEXPORT void JNICALL
136 JVM_GC(void);
138 /* Returns the number of real-time milliseconds that have elapsed since the
139 * least-recently-inspected heap object was last inspected by the garbage
140 * collector.
141 *
142 * For simple stop-the-world collectors this value is just the time
143 * since the most recent collection. For generational collectors it is the
144 * time since the oldest generation was most recently collected. Other
145 * collectors are free to return a pessimistic estimate of the elapsed time, or
146 * simply the time since the last full collection was performed.
147 *
148 * Note that in the presence of reference objects, a given object that is no
149 * longer strongly reachable may have to be inspected multiple times before it
150 * can be reclaimed.
151 */
152 JNIEXPORT jlong JNICALL
153 JVM_MaxObjectInspectionAge(void);
155 JNIEXPORT void JNICALL
156 JVM_TraceInstructions(jboolean on);
158 JNIEXPORT void JNICALL
159 JVM_TraceMethodCalls(jboolean on);
161 JNIEXPORT jlong JNICALL
162 JVM_TotalMemory(void);
164 JNIEXPORT jlong JNICALL
165 JVM_FreeMemory(void);
167 JNIEXPORT jlong JNICALL
168 JVM_MaxMemory(void);
170 JNIEXPORT jint JNICALL
171 JVM_ActiveProcessorCount(void);
173 JNIEXPORT void * JNICALL
174 JVM_LoadLibrary(const char *name);
176 JNIEXPORT void JNICALL
177 JVM_UnloadLibrary(void * handle);
179 JNIEXPORT void * JNICALL
180 JVM_FindLibraryEntry(void *handle, const char *name);
182 JNIEXPORT jboolean JNICALL
183 JVM_IsSupportedJNIVersion(jint version);
185 /*
186 * java.lang.Float and java.lang.Double
187 */
188 JNIEXPORT jboolean JNICALL
189 JVM_IsNaN(jdouble d);
191 /*
192 * java.lang.Throwable
193 */
194 JNIEXPORT void JNICALL
195 JVM_FillInStackTrace(JNIEnv *env, jobject throwable);
197 JNIEXPORT void JNICALL
198 JVM_PrintStackTrace(JNIEnv *env, jobject throwable, jobject printable);
200 JNIEXPORT jint JNICALL
201 JVM_GetStackTraceDepth(JNIEnv *env, jobject throwable);
203 JNIEXPORT jobject JNICALL
204 JVM_GetStackTraceElement(JNIEnv *env, jobject throwable, jint index);
206 /*
207 * java.lang.Compiler
208 */
209 JNIEXPORT void JNICALL
210 JVM_InitializeCompiler (JNIEnv *env, jclass compCls);
212 JNIEXPORT jboolean JNICALL
213 JVM_IsSilentCompiler(JNIEnv *env, jclass compCls);
215 JNIEXPORT jboolean JNICALL
216 JVM_CompileClass(JNIEnv *env, jclass compCls, jclass cls);
218 JNIEXPORT jboolean JNICALL
219 JVM_CompileClasses(JNIEnv *env, jclass cls, jstring jname);
221 JNIEXPORT jobject JNICALL
222 JVM_CompilerCommand(JNIEnv *env, jclass compCls, jobject arg);
224 JNIEXPORT void JNICALL
225 JVM_EnableCompiler(JNIEnv *env, jclass compCls);
227 JNIEXPORT void JNICALL
228 JVM_DisableCompiler(JNIEnv *env, jclass compCls);
230 /*
231 * java.lang.Thread
232 */
233 JNIEXPORT void JNICALL
234 JVM_StartThread(JNIEnv *env, jobject thread);
236 JNIEXPORT void JNICALL
237 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception);
239 JNIEXPORT jboolean JNICALL
240 JVM_IsThreadAlive(JNIEnv *env, jobject thread);
242 JNIEXPORT void JNICALL
243 JVM_SuspendThread(JNIEnv *env, jobject thread);
245 JNIEXPORT void JNICALL
246 JVM_ResumeThread(JNIEnv *env, jobject thread);
248 JNIEXPORT void JNICALL
249 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio);
251 JNIEXPORT void JNICALL
252 JVM_Yield(JNIEnv *env, jclass threadClass);
254 JNIEXPORT void JNICALL
255 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis);
257 JNIEXPORT jobject JNICALL
258 JVM_CurrentThread(JNIEnv *env, jclass threadClass);
260 JNIEXPORT jint JNICALL
261 JVM_CountStackFrames(JNIEnv *env, jobject thread);
263 JNIEXPORT void JNICALL
264 JVM_Interrupt(JNIEnv *env, jobject thread);
266 JNIEXPORT jboolean JNICALL
267 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted);
269 JNIEXPORT jboolean JNICALL
270 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);
272 JNIEXPORT void JNICALL
273 JVM_DumpAllStacks(JNIEnv *env, jclass unused);
275 JNIEXPORT jobjectArray JNICALL
276 JVM_GetAllThreads(JNIEnv *env, jclass dummy);
278 /* getStackTrace() and getAllStackTraces() method */
279 JNIEXPORT jobjectArray JNICALL
280 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
282 /*
283 * java.lang.SecurityManager
284 */
285 JNIEXPORT jclass JNICALL
286 JVM_CurrentLoadedClass(JNIEnv *env);
288 JNIEXPORT jobject JNICALL
289 JVM_CurrentClassLoader(JNIEnv *env);
291 JNIEXPORT jobjectArray JNICALL
292 JVM_GetClassContext(JNIEnv *env);
294 JNIEXPORT jint JNICALL
295 JVM_ClassDepth(JNIEnv *env, jstring name);
297 JNIEXPORT jint JNICALL
298 JVM_ClassLoaderDepth(JNIEnv *env);
300 /*
301 * java.lang.Package
302 */
303 JNIEXPORT jstring JNICALL
304 JVM_GetSystemPackage(JNIEnv *env, jstring name);
306 JNIEXPORT jobjectArray JNICALL
307 JVM_GetSystemPackages(JNIEnv *env);
309 /*
310 * java.io.ObjectInputStream
311 */
312 JNIEXPORT jobject JNICALL
313 JVM_AllocateNewObject(JNIEnv *env, jobject obj, jclass currClass,
314 jclass initClass);
316 JNIEXPORT jobject JNICALL
317 JVM_AllocateNewArray(JNIEnv *env, jobject obj, jclass currClass,
318 jint length);
320 JNIEXPORT jobject JNICALL
321 JVM_LatestUserDefinedLoader(JNIEnv *env);
323 /*
324 * This function has been deprecated and should not be considered
325 * part of the specified JVM interface.
326 */
327 JNIEXPORT jclass JNICALL
328 JVM_LoadClass0(JNIEnv *env, jobject obj, jclass currClass,
329 jstring currClassName);
331 /*
332 * java.lang.reflect.Array
333 */
334 JNIEXPORT jint JNICALL
335 JVM_GetArrayLength(JNIEnv *env, jobject arr);
337 JNIEXPORT jobject JNICALL
338 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
340 JNIEXPORT jvalue JNICALL
341 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
343 JNIEXPORT void JNICALL
344 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
346 JNIEXPORT void JNICALL
347 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
348 unsigned char vCode);
350 JNIEXPORT jobject JNICALL
351 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
353 JNIEXPORT jobject JNICALL
354 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
356 /*
357 * java.lang.Class and java.lang.ClassLoader
358 */
359 /*
360 * Returns the class in which the code invoking the native method
361 * belongs.
362 *
363 * Note that in JDK 1.1, native methods did not create a frame.
364 * In 1.2, they do. Therefore native methods like Class.forName
365 * can no longer look at the current frame for the caller class.
366 */
367 JNIEXPORT jclass JNICALL
368 JVM_GetCallerClass(JNIEnv *env, int n);
370 /*
371 * Find primitive classes
372 * utf: class name
373 */
374 JNIEXPORT jclass JNICALL
375 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
377 /*
378 * Link the class
379 */
380 JNIEXPORT void JNICALL
381 JVM_ResolveClass(JNIEnv *env, jclass cls);
383 /*
384 * Find a class from a given class loader. Throw ClassNotFoundException
385 * or NoClassDefFoundError depending on the value of the last
386 * argument.
387 */
388 JNIEXPORT jclass JNICALL
389 JVM_FindClassFromClassLoader(JNIEnv *env, const char *name, jboolean init,
390 jobject loader, jboolean throwError);
392 /*
393 * Find a class from a boot class loader. Throw ClassNotFoundException
394 * or NoClassDefFoundError depending on the value of the last
395 * argument. This is the same as FindClassFromClassLoader but provided
396 * as a convenience method exported correctly on all platforms for
397 * JSR 277 launcher class loading.
398 */
399 JNIEXPORT jclass JNICALL
400 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name,
401 jboolean throwError);
403 /*
404 * Find a class from a given class.
405 */
406 JNIEXPORT jclass JNICALL
407 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
408 jclass from);
410 /* Find a loaded class cached by the VM */
411 JNIEXPORT jclass JNICALL
412 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
414 /* Define a class */
415 JNIEXPORT jclass JNICALL
416 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
417 jsize len, jobject pd);
419 /* Define a class with a source (added in JDK1.5) */
420 JNIEXPORT jclass JNICALL
421 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
422 const jbyte *buf, jsize len, jobject pd,
423 const char *source);
425 /* Define a class with a source (MLVM) */
426 JNIEXPORT jclass JNICALL
427 JVM_DefineClassWithCP(JNIEnv *env, const char *name, jobject loader,
428 const jbyte *buf, jsize len, jobject pd,
429 const char *source,
430 // same args as JVM_DefineClassWithSource to this point
431 jobjectArray constants);
433 /*
434 * Reflection support functions
435 */
437 JNIEXPORT jstring JNICALL
438 JVM_GetClassName(JNIEnv *env, jclass cls);
440 JNIEXPORT jobjectArray JNICALL
441 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
443 JNIEXPORT jobject JNICALL
444 JVM_GetClassLoader(JNIEnv *env, jclass cls);
446 JNIEXPORT jboolean JNICALL
447 JVM_IsInterface(JNIEnv *env, jclass cls);
449 JNIEXPORT jobjectArray JNICALL
450 JVM_GetClassSigners(JNIEnv *env, jclass cls);
452 JNIEXPORT void JNICALL
453 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
455 JNIEXPORT jobject JNICALL
456 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
458 JNIEXPORT void JNICALL
459 JVM_SetProtectionDomain(JNIEnv *env, jclass cls, jobject protection_domain);
461 JNIEXPORT jboolean JNICALL
462 JVM_IsArrayClass(JNIEnv *env, jclass cls);
464 JNIEXPORT jboolean JNICALL
465 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
467 JNIEXPORT jclass JNICALL
468 JVM_GetComponentType(JNIEnv *env, jclass cls);
470 JNIEXPORT jint JNICALL
471 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
473 JNIEXPORT jobjectArray JNICALL
474 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
476 JNIEXPORT jclass JNICALL
477 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
479 /* Generics support (JDK 1.5) */
480 JNIEXPORT jstring JNICALL
481 JVM_GetClassSignature(JNIEnv *env, jclass cls);
483 /* Annotations support (JDK 1.5) */
484 JNIEXPORT jbyteArray JNICALL
485 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
487 /* Annotations support (JDK 1.6) */
489 // field is a handle to a java.lang.reflect.Field object
490 JNIEXPORT jbyteArray JNICALL
491 JVM_GetFieldAnnotations(JNIEnv *env, jobject field);
493 // method is a handle to a java.lang.reflect.Method object
494 JNIEXPORT jbyteArray JNICALL
495 JVM_GetMethodAnnotations(JNIEnv *env, jobject method);
497 // method is a handle to a java.lang.reflect.Method object
498 JNIEXPORT jbyteArray JNICALL
499 JVM_GetMethodDefaultAnnotationValue(JNIEnv *env, jobject method);
501 // method is a handle to a java.lang.reflect.Method object
502 JNIEXPORT jbyteArray JNICALL
503 JVM_GetMethodParameterAnnotations(JNIEnv *env, jobject method);
506 /*
507 * New (JDK 1.4) reflection implementation
508 */
510 JNIEXPORT jobjectArray JNICALL
511 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
513 JNIEXPORT jobjectArray JNICALL
514 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
516 JNIEXPORT jobjectArray JNICALL
517 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
519 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
520 This returns the access flags for the class as specified in the
521 class file rather than searching the InnerClasses attribute (if
522 present) to find the source-level access flags. Only the values of
523 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
524 valid. */
525 JNIEXPORT jint JNICALL
526 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
528 /*
529 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
530 */
532 JNIEXPORT jobject JNICALL
533 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
535 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
536 (JNIEnv *env, jobject unused, jobject jcpool);
538 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
539 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
541 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
542 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
544 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
545 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
547 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
548 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
550 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
551 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
553 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
554 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
556 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
557 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
559 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
560 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
562 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
563 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
565 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
566 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
568 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
569 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
571 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
572 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
574 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
575 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
577 /*
578 * java.security.*
579 */
581 JNIEXPORT jobject JNICALL
582 JVM_DoPrivileged(JNIEnv *env, jclass cls,
583 jobject action, jobject context, jboolean wrapException);
585 JNIEXPORT jobject JNICALL
586 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
588 JNIEXPORT jobject JNICALL
589 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
591 /*
592 * Signal support, used to implement the shutdown sequence. Every VM must
593 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
594 * (^C) and the latter for external termination (kill, system shutdown, etc.).
595 * Other platform-dependent signal values may also be supported.
596 */
598 JNIEXPORT void * JNICALL
599 JVM_RegisterSignal(jint sig, void *handler);
601 JNIEXPORT jboolean JNICALL
602 JVM_RaiseSignal(jint sig);
604 JNIEXPORT jint JNICALL
605 JVM_FindSignal(const char *name);
607 /*
608 * Retrieve the assertion directives for the specified class.
609 */
610 JNIEXPORT jboolean JNICALL
611 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
613 /*
614 * Retrieve the assertion directives from the VM.
615 */
616 JNIEXPORT jobject JNICALL
617 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
619 /*
620 * sun.misc.AtomicLong
621 */
622 JNIEXPORT jboolean JNICALL
623 JVM_SupportsCX8(void);
625 JNIEXPORT jboolean JNICALL
626 JVM_CX8Field(JNIEnv *env, jobject obj, jfieldID fldID, jlong oldVal, jlong newVal);
628 /*
629 * com.sun.dtrace.jsdt support
630 */
632 #define JVM_TRACING_DTRACE_VERSION 1
634 /*
635 * Structure to pass one probe description to JVM.
636 *
637 * The VM will overwrite the definition of the referenced method with
638 * code that will fire the probe.
639 */
640 typedef struct {
641 jmethodID method;
642 jstring function;
643 jstring name;
644 void* reserved[4]; // for future use
645 } JVM_DTraceProbe;
647 /**
648 * Encapsulates the stability ratings for a DTrace provider field
649 */
650 typedef struct {
651 jint nameStability;
652 jint dataStability;
653 jint dependencyClass;
654 } JVM_DTraceInterfaceAttributes;
656 /*
657 * Structure to pass one provider description to JVM
658 */
659 typedef struct {
660 jstring name;
661 JVM_DTraceProbe* probes;
662 jint probe_count;
663 JVM_DTraceInterfaceAttributes providerAttributes;
664 JVM_DTraceInterfaceAttributes moduleAttributes;
665 JVM_DTraceInterfaceAttributes functionAttributes;
666 JVM_DTraceInterfaceAttributes nameAttributes;
667 JVM_DTraceInterfaceAttributes argsAttributes;
668 void* reserved[4]; // for future use
669 } JVM_DTraceProvider;
671 /*
672 * Get the version number the JVM was built with
673 */
674 JNIEXPORT jint JNICALL
675 JVM_DTraceGetVersion(JNIEnv* env);
677 /*
678 * Register new probe with given signature, return global handle
679 *
680 * The version passed in is the version that the library code was
681 * built with.
682 */
683 JNIEXPORT jlong JNICALL
684 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name,
685 jint providers_count, JVM_DTraceProvider* providers);
687 /*
688 * Check JSDT probe
689 */
690 JNIEXPORT jboolean JNICALL
691 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method);
693 /*
694 * Destroy custom DOF
695 */
696 JNIEXPORT void JNICALL
697 JVM_DTraceDispose(JNIEnv* env, jlong handle);
699 /*
700 * Check to see if DTrace is supported by OS
701 */
702 JNIEXPORT jboolean JNICALL
703 JVM_DTraceIsSupported(JNIEnv* env);
705 /*************************************************************************
706 PART 2: Support for the Verifier and Class File Format Checker
707 ************************************************************************/
708 /*
709 * Return the class name in UTF format. The result is valid
710 * until JVM_ReleaseUTf is called.
711 *
712 * The caller must treat the string as a constant and not modify it
713 * in any way.
714 */
715 JNIEXPORT const char * JNICALL
716 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
718 /*
719 * Returns the constant pool types in the buffer provided by "types."
720 */
721 JNIEXPORT void JNICALL
722 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
724 /*
725 * Returns the number of Constant Pool entries.
726 */
727 JNIEXPORT jint JNICALL
728 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
730 /*
731 * Returns the number of *declared* fields or methods.
732 */
733 JNIEXPORT jint JNICALL
734 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
736 JNIEXPORT jint JNICALL
737 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
739 /*
740 * Returns the CP indexes of exceptions raised by a given method.
741 * Places the result in the given buffer.
742 *
743 * The method is identified by method_index.
744 */
745 JNIEXPORT void JNICALL
746 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
747 unsigned short *exceptions);
748 /*
749 * Returns the number of exceptions raised by a given method.
750 * The method is identified by method_index.
751 */
752 JNIEXPORT jint JNICALL
753 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
755 /*
756 * Returns the byte code sequence of a given method.
757 * Places the result in the given buffer.
758 *
759 * The method is identified by method_index.
760 */
761 JNIEXPORT void JNICALL
762 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
763 unsigned char *code);
765 /*
766 * Returns the length of the byte code sequence of a given method.
767 * The method is identified by method_index.
768 */
769 JNIEXPORT jint JNICALL
770 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
772 /*
773 * A structure used to a capture exception table entry in a Java method.
774 */
775 typedef struct {
776 jint start_pc;
777 jint end_pc;
778 jint handler_pc;
779 jint catchType;
780 } JVM_ExceptionTableEntryType;
782 /*
783 * Returns the exception table entry at entry_index of a given method.
784 * Places the result in the given buffer.
785 *
786 * The method is identified by method_index.
787 */
788 JNIEXPORT void JNICALL
789 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
790 jint entry_index,
791 JVM_ExceptionTableEntryType *entry);
793 /*
794 * Returns the length of the exception table of a given method.
795 * The method is identified by method_index.
796 */
797 JNIEXPORT jint JNICALL
798 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
800 /*
801 * Returns the modifiers of a given field.
802 * The field is identified by field_index.
803 */
804 JNIEXPORT jint JNICALL
805 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
807 /*
808 * Returns the modifiers of a given method.
809 * The method is identified by method_index.
810 */
811 JNIEXPORT jint JNICALL
812 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
814 /*
815 * Returns the number of local variables of a given method.
816 * The method is identified by method_index.
817 */
818 JNIEXPORT jint JNICALL
819 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
821 /*
822 * Returns the number of arguments (including this pointer) of a given method.
823 * The method is identified by method_index.
824 */
825 JNIEXPORT jint JNICALL
826 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
828 /*
829 * Returns the maximum amount of stack (in words) used by a given method.
830 * The method is identified by method_index.
831 */
832 JNIEXPORT jint JNICALL
833 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
835 /*
836 * Is a given method a constructor.
837 * The method is identified by method_index.
838 */
839 JNIEXPORT jboolean JNICALL
840 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
842 /*
843 * Returns the name of a given method in UTF format.
844 * The result remains valid until JVM_ReleaseUTF is called.
845 *
846 * The caller must treat the string as a constant and not modify it
847 * in any way.
848 */
849 JNIEXPORT const char * JNICALL
850 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
852 /*
853 * Returns the signature of a given method in UTF format.
854 * The result remains valid until JVM_ReleaseUTF is called.
855 *
856 * The caller must treat the string as a constant and not modify it
857 * in any way.
858 */
859 JNIEXPORT const char * JNICALL
860 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
862 /*
863 * Returns the name of the field refered to at a given constant pool
864 * index.
865 *
866 * The result is in UTF format and remains valid until JVM_ReleaseUTF
867 * is called.
868 *
869 * The caller must treat the string as a constant and not modify it
870 * in any way.
871 */
872 JNIEXPORT const char * JNICALL
873 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
875 /*
876 * Returns the name of the method refered to at a given constant pool
877 * index.
878 *
879 * The result is in UTF format and remains valid until JVM_ReleaseUTF
880 * is called.
881 *
882 * The caller must treat the string as a constant and not modify it
883 * in any way.
884 */
885 JNIEXPORT const char * JNICALL
886 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
888 /*
889 * Returns the signature of the method refered to at a given constant pool
890 * index.
891 *
892 * The result is in UTF format and remains valid until JVM_ReleaseUTF
893 * is called.
894 *
895 * The caller must treat the string as a constant and not modify it
896 * in any way.
897 */
898 JNIEXPORT const char * JNICALL
899 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
901 /*
902 * Returns the signature of the field refered to at a given constant pool
903 * index.
904 *
905 * The result is in UTF format and remains valid until JVM_ReleaseUTF
906 * is called.
907 *
908 * The caller must treat the string as a constant and not modify it
909 * in any way.
910 */
911 JNIEXPORT const char * JNICALL
912 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
914 /*
915 * Returns the class name refered to at a given constant pool index.
916 *
917 * The result is in UTF format and remains valid until JVM_ReleaseUTF
918 * is called.
919 *
920 * The caller must treat the string as a constant and not modify it
921 * in any way.
922 */
923 JNIEXPORT const char * JNICALL
924 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
926 /*
927 * Returns the class name refered to at a given constant pool index.
928 *
929 * The constant pool entry must refer to a CONSTANT_Fieldref.
930 *
931 * The result is in UTF format and remains valid until JVM_ReleaseUTF
932 * is called.
933 *
934 * The caller must treat the string as a constant and not modify it
935 * in any way.
936 */
937 JNIEXPORT const char * JNICALL
938 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
940 /*
941 * Returns the class name refered to at a given constant pool index.
942 *
943 * The constant pool entry must refer to CONSTANT_Methodref or
944 * CONSTANT_InterfaceMethodref.
945 *
946 * The result is in UTF format and remains valid until JVM_ReleaseUTF
947 * is called.
948 *
949 * The caller must treat the string as a constant and not modify it
950 * in any way.
951 */
952 JNIEXPORT const char * JNICALL
953 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
955 /*
956 * Returns the modifiers of a field in calledClass. The field is
957 * referred to in class cb at constant pool entry index.
958 *
959 * The caller must treat the string as a constant and not modify it
960 * in any way.
961 *
962 * Returns -1 if the field does not exist in calledClass.
963 */
964 JNIEXPORT jint JNICALL
965 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
967 /*
968 * Returns the modifiers of a method in calledClass. The method is
969 * referred to in class cb at constant pool entry index.
970 *
971 * Returns -1 if the method does not exist in calledClass.
972 */
973 JNIEXPORT jint JNICALL
974 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
976 /*
977 * Releases the UTF string obtained from the VM.
978 */
979 JNIEXPORT void JNICALL
980 JVM_ReleaseUTF(const char *utf);
982 /*
983 * Compare if two classes are in the same package.
984 */
985 JNIEXPORT jboolean JNICALL
986 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
988 /* Constants in class files */
990 #define JVM_ACC_PUBLIC 0x0001 /* visible to everyone */
991 #define JVM_ACC_PRIVATE 0x0002 /* visible only to the defining class */
992 #define JVM_ACC_PROTECTED 0x0004 /* visible to subclasses */
993 #define JVM_ACC_STATIC 0x0008 /* instance variable is static */
994 #define JVM_ACC_FINAL 0x0010 /* no further subclassing, overriding */
995 #define JVM_ACC_SYNCHRONIZED 0x0020 /* wrap method call in monitor lock */
996 #define JVM_ACC_SUPER 0x0020 /* funky handling of invokespecial */
997 #define JVM_ACC_VOLATILE 0x0040 /* can not cache in registers */
998 #define JVM_ACC_BRIDGE 0x0040 /* bridge method generated by compiler */
999 #define JVM_ACC_TRANSIENT 0x0080 /* not persistent */
1000 #define JVM_ACC_VARARGS 0x0080 /* method declared with variable number of args */
1001 #define JVM_ACC_NATIVE 0x0100 /* implemented in C */
1002 #define JVM_ACC_INTERFACE 0x0200 /* class is an interface */
1003 #define JVM_ACC_ABSTRACT 0x0400 /* no definition provided */
1004 #define JVM_ACC_STRICT 0x0800 /* strict floating point */
1005 #define JVM_ACC_SYNTHETIC 0x1000 /* compiler-generated class, method or field */
1006 #define JVM_ACC_ANNOTATION 0x2000 /* annotation type */
1007 #define JVM_ACC_ENUM 0x4000 /* field is declared as element of enum */
1009 #define JVM_ACC_PUBLIC_BIT 0
1010 #define JVM_ACC_PRIVATE_BIT 1
1011 #define JVM_ACC_PROTECTED_BIT 2
1012 #define JVM_ACC_STATIC_BIT 3
1013 #define JVM_ACC_FINAL_BIT 4
1014 #define JVM_ACC_SYNCHRONIZED_BIT 5
1015 #define JVM_ACC_SUPER_BIT 5
1016 #define JVM_ACC_VOLATILE_BIT 6
1017 #define JVM_ACC_BRIDGE_BIT 6
1018 #define JVM_ACC_TRANSIENT_BIT 7
1019 #define JVM_ACC_VARARGS_BIT 7
1020 #define JVM_ACC_NATIVE_BIT 8
1021 #define JVM_ACC_INTERFACE_BIT 9
1022 #define JVM_ACC_ABSTRACT_BIT 10
1023 #define JVM_ACC_STRICT_BIT 11
1024 #define JVM_ACC_SYNTHETIC_BIT 12
1025 #define JVM_ACC_ANNOTATION_BIT 13
1026 #define JVM_ACC_ENUM_BIT 14
1028 // NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/utilities/ConstantTag.java
1029 enum {
1030 JVM_CONSTANT_Utf8 = 1,
1031 JVM_CONSTANT_Unicode, /* unused */
1032 JVM_CONSTANT_Integer,
1033 JVM_CONSTANT_Float,
1034 JVM_CONSTANT_Long,
1035 JVM_CONSTANT_Double,
1036 JVM_CONSTANT_Class,
1037 JVM_CONSTANT_String,
1038 JVM_CONSTANT_Fieldref,
1039 JVM_CONSTANT_Methodref,
1040 JVM_CONSTANT_InterfaceMethodref,
1041 JVM_CONSTANT_NameAndType
1042 };
1044 /* Used in the newarray instruction. */
1046 #define JVM_T_BOOLEAN 4
1047 #define JVM_T_CHAR 5
1048 #define JVM_T_FLOAT 6
1049 #define JVM_T_DOUBLE 7
1050 #define JVM_T_BYTE 8
1051 #define JVM_T_SHORT 9
1052 #define JVM_T_INT 10
1053 #define JVM_T_LONG 11
1055 /* JVM method signatures */
1057 #define JVM_SIGNATURE_ARRAY '['
1058 #define JVM_SIGNATURE_BYTE 'B'
1059 #define JVM_SIGNATURE_CHAR 'C'
1060 #define JVM_SIGNATURE_CLASS 'L'
1061 #define JVM_SIGNATURE_ENDCLASS ';'
1062 #define JVM_SIGNATURE_ENUM 'E'
1063 #define JVM_SIGNATURE_FLOAT 'F'
1064 #define JVM_SIGNATURE_DOUBLE 'D'
1065 #define JVM_SIGNATURE_FUNC '('
1066 #define JVM_SIGNATURE_ENDFUNC ')'
1067 #define JVM_SIGNATURE_INT 'I'
1068 #define JVM_SIGNATURE_LONG 'J'
1069 #define JVM_SIGNATURE_SHORT 'S'
1070 #define JVM_SIGNATURE_VOID 'V'
1071 #define JVM_SIGNATURE_BOOLEAN 'Z'
1073 /*
1074 * A function defined by the byte-code verifier and called by the VM.
1075 * This is not a function implemented in the VM.
1076 *
1077 * Returns JNI_FALSE if verification fails. A detailed error message
1078 * will be places in msg_buf, whose length is specified by buf_len.
1079 */
1080 typedef jboolean (*verifier_fn_t)(JNIEnv *env,
1081 jclass cb,
1082 char * msg_buf,
1083 jint buf_len);
1086 /*
1087 * Support for a VM-independent class format checker.
1088 */
1089 typedef struct {
1090 unsigned long code; /* byte code */
1091 unsigned long excs; /* exceptions */
1092 unsigned long etab; /* catch table */
1093 unsigned long lnum; /* line number */
1094 unsigned long lvar; /* local vars */
1095 } method_size_info;
1097 typedef struct {
1098 unsigned int constants; /* constant pool */
1099 unsigned int fields;
1100 unsigned int methods;
1101 unsigned int interfaces;
1102 unsigned int fields2; /* number of static 2-word fields */
1103 unsigned int innerclasses; /* # of records in InnerClasses attr */
1105 method_size_info clinit; /* memory used in clinit */
1106 method_size_info main; /* used everywhere else */
1107 } class_size_info;
1109 /*
1110 * Functions defined in libjava.so to perform string conversions.
1111 *
1112 */
1114 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str);
1116 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b);
1118 /* This is the function defined in libjava.so that performs class
1119 * format checks. This functions fills in size information about
1120 * the class file and returns:
1121 *
1122 * 0: good
1123 * -1: out of memory
1124 * -2: bad format
1125 * -3: unsupported version
1126 * -4: bad class name
1127 */
1129 typedef jint (*check_format_fn_t)(char *class_name,
1130 unsigned char *data,
1131 unsigned int data_size,
1132 class_size_info *class_size,
1133 char *message_buffer,
1134 jint buffer_length,
1135 jboolean measure_only,
1136 jboolean check_relaxed);
1138 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1139 JVM_ACC_FINAL | \
1140 JVM_ACC_SUPER | \
1141 JVM_ACC_INTERFACE | \
1142 JVM_ACC_ABSTRACT | \
1143 JVM_ACC_ANNOTATION | \
1144 JVM_ACC_ENUM | \
1145 JVM_ACC_SYNTHETIC)
1147 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1148 JVM_ACC_PRIVATE | \
1149 JVM_ACC_PROTECTED | \
1150 JVM_ACC_STATIC | \
1151 JVM_ACC_FINAL | \
1152 JVM_ACC_VOLATILE | \
1153 JVM_ACC_TRANSIENT | \
1154 JVM_ACC_ENUM | \
1155 JVM_ACC_SYNTHETIC)
1157 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1158 JVM_ACC_PRIVATE | \
1159 JVM_ACC_PROTECTED | \
1160 JVM_ACC_STATIC | \
1161 JVM_ACC_FINAL | \
1162 JVM_ACC_SYNCHRONIZED | \
1163 JVM_ACC_BRIDGE | \
1164 JVM_ACC_VARARGS | \
1165 JVM_ACC_NATIVE | \
1166 JVM_ACC_ABSTRACT | \
1167 JVM_ACC_STRICT | \
1168 JVM_ACC_SYNTHETIC)
1170 /*
1171 * This is the function defined in libjava.so to perform path
1172 * canonicalization. VM call this function before opening jar files
1173 * to load system classes.
1174 *
1175 */
1177 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len);
1179 /*************************************************************************
1180 PART 3: I/O and Network Support
1181 ************************************************************************/
1183 /* Note that the JVM IO functions are expected to return JVM_IO_ERR
1184 * when there is any kind of error. The caller can then use the
1185 * platform specific support (e.g., errno) to get the detailed
1186 * error info. The JVM_GetLastErrorString procedure may also be used
1187 * to obtain a descriptive error string.
1188 */
1189 #define JVM_IO_ERR (-1)
1191 /* For interruptible IO. Returning JVM_IO_INTR indicates that an IO
1192 * operation has been disrupted by Thread.interrupt. There are a
1193 * number of technical difficulties related to interruptible IO that
1194 * need to be solved. For example, most existing programs do not handle
1195 * InterruptedIOExceptions specially, they simply treat those as any
1196 * IOExceptions, which typically indicate fatal errors.
1197 *
1198 * There are also two modes of operation for interruptible IO. In the
1199 * resumption mode, an interrupted IO operation is guaranteed not to
1200 * have any side-effects, and can be restarted. In the termination mode,
1201 * an interrupted IO operation corrupts the underlying IO stream, so
1202 * that the only reasonable operation on an interrupted stream is to
1203 * close that stream. The resumption mode seems to be impossible to
1204 * implement on Win32 and Solaris. Implementing the termination mode is
1205 * easier, but it's not clear that's the right semantics.
1206 *
1207 * Interruptible IO is not supported on Win32.It can be enabled/disabled
1208 * using a compile-time flag on Solaris. Third-party JVM ports do not
1209 * need to implement interruptible IO.
1210 */
1211 #define JVM_IO_INTR (-2)
1213 /* Write a string into the given buffer, in the platform's local encoding,
1214 * that describes the most recent system-level error to occur in this thread.
1215 * Return the length of the string or zero if no error occurred.
1216 */
1217 JNIEXPORT jint JNICALL
1218 JVM_GetLastErrorString(char *buf, int len);
1220 /*
1221 * Convert a pathname into native format. This function does syntactic
1222 * cleanup, such as removing redundant separator characters. It modifies
1223 * the given pathname string in place.
1224 */
1225 JNIEXPORT char * JNICALL
1226 JVM_NativePath(char *);
1228 /*
1229 * JVM I/O error codes
1230 */
1231 #define JVM_EEXIST -100
1233 /*
1234 * Open a file descriptor. This function returns a negative error code
1235 * on error, and a non-negative integer that is the file descriptor on
1236 * success.
1237 */
1238 JNIEXPORT jint JNICALL
1239 JVM_Open(const char *fname, jint flags, jint mode);
1241 /*
1242 * Close a file descriptor. This function returns -1 on error, and 0
1243 * on success.
1244 *
1245 * fd the file descriptor to close.
1246 */
1247 JNIEXPORT jint JNICALL
1248 JVM_Close(jint fd);
1250 /*
1251 * Read data from a file decriptor into a char array.
1252 *
1253 * fd the file descriptor to read from.
1254 * buf the buffer where to put the read data.
1255 * nbytes the number of bytes to read.
1256 *
1257 * This function returns -1 on error, and 0 on success.
1258 */
1259 JNIEXPORT jint JNICALL
1260 JVM_Read(jint fd, char *buf, jint nbytes);
1262 /*
1263 * Write data from a char array to a file decriptor.
1264 *
1265 * fd the file descriptor to read from.
1266 * buf the buffer from which to fetch the data.
1267 * nbytes the number of bytes to write.
1268 *
1269 * This function returns -1 on error, and 0 on success.
1270 */
1271 JNIEXPORT jint JNICALL
1272 JVM_Write(jint fd, char *buf, jint nbytes);
1274 /*
1275 * Returns the number of bytes available for reading from a given file
1276 * descriptor
1277 */
1278 JNIEXPORT jint JNICALL
1279 JVM_Available(jint fd, jlong *pbytes);
1281 /*
1282 * Move the file descriptor pointer from whence by offset.
1283 *
1284 * fd the file descriptor to move.
1285 * offset the number of bytes to move it by.
1286 * whence the start from where to move it.
1287 *
1288 * This function returns the resulting pointer location.
1289 */
1290 JNIEXPORT jlong JNICALL
1291 JVM_Lseek(jint fd, jlong offset, jint whence);
1293 /*
1294 * Set the length of the file associated with the given descriptor to the given
1295 * length. If the new length is longer than the current length then the file
1296 * is extended; the contents of the extended portion are not defined. The
1297 * value of the file pointer is undefined after this procedure returns.
1298 */
1299 JNIEXPORT jint JNICALL
1300 JVM_SetLength(jint fd, jlong length);
1302 /*
1303 * Synchronize the file descriptor's in memory state with that of the
1304 * physical device. Return of -1 is an error, 0 is OK.
1305 */
1306 JNIEXPORT jint JNICALL
1307 JVM_Sync(jint fd);
1309 /*
1310 * Networking library support
1311 */
1313 JNIEXPORT jint JNICALL
1314 JVM_InitializeSocketLibrary(void);
1316 struct sockaddr;
1318 JNIEXPORT jint JNICALL
1319 JVM_Socket(jint domain, jint type, jint protocol);
1321 JNIEXPORT jint JNICALL
1322 JVM_SocketClose(jint fd);
1324 JNIEXPORT jint JNICALL
1325 JVM_SocketShutdown(jint fd, jint howto);
1327 JNIEXPORT jint JNICALL
1328 JVM_Recv(jint fd, char *buf, jint nBytes, jint flags);
1330 JNIEXPORT jint JNICALL
1331 JVM_Send(jint fd, char *buf, jint nBytes, jint flags);
1333 JNIEXPORT jint JNICALL
1334 JVM_Timeout(int fd, long timeout);
1336 JNIEXPORT jint JNICALL
1337 JVM_Listen(jint fd, jint count);
1339 JNIEXPORT jint JNICALL
1340 JVM_Connect(jint fd, struct sockaddr *him, jint len);
1342 JNIEXPORT jint JNICALL
1343 JVM_Bind(jint fd, struct sockaddr *him, jint len);
1345 JNIEXPORT jint JNICALL
1346 JVM_Accept(jint fd, struct sockaddr *him, jint *len);
1348 JNIEXPORT jint JNICALL
1349 JVM_RecvFrom(jint fd, char *buf, int nBytes,
1350 int flags, struct sockaddr *from, int *fromlen);
1352 JNIEXPORT jint JNICALL
1353 JVM_SendTo(jint fd, char *buf, int len,
1354 int flags, struct sockaddr *to, int tolen);
1356 JNIEXPORT jint JNICALL
1357 JVM_SocketAvailable(jint fd, jint *result);
1360 JNIEXPORT jint JNICALL
1361 JVM_GetSockName(jint fd, struct sockaddr *him, int *len);
1363 JNIEXPORT jint JNICALL
1364 JVM_GetSockOpt(jint fd, int level, int optname, char *optval, int *optlen);
1366 JNIEXPORT jint JNICALL
1367 JVM_SetSockOpt(jint fd, int level, int optname, const char *optval, int optlen);
1369 /*
1370 * These routines are only reentrant on Windows
1371 */
1373 #ifdef _WINDOWS
1375 JNIEXPORT struct protoent * JNICALL
1376 JVM_GetProtoByName(char* name);
1378 JNIEXPORT struct hostent* JNICALL
1379 JVM_GetHostByAddr(const char* name, int len, int type);
1381 JNIEXPORT struct hostent* JNICALL
1382 JVM_GetHostByName(char* name);
1384 #endif /* _WINDOWS */
1386 JNIEXPORT int JNICALL
1387 JVM_GetHostName(char* name, int namelen);
1389 /*
1390 * The standard printing functions supported by the Java VM. (Should they
1391 * be renamed to JVM_* in the future?
1392 */
1394 /*
1395 * BE CAREFUL! The following functions do not implement the
1396 * full feature set of standard C printf formats.
1397 */
1398 int
1399 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1401 int
1402 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1404 int
1405 jio_fprintf(FILE *, const char *fmt, ...);
1407 int
1408 jio_vfprintf(FILE *, const char *fmt, va_list args);
1411 JNIEXPORT void * JNICALL
1412 JVM_RawMonitorCreate(void);
1414 JNIEXPORT void JNICALL
1415 JVM_RawMonitorDestroy(void *mon);
1417 JNIEXPORT jint JNICALL
1418 JVM_RawMonitorEnter(void *mon);
1420 JNIEXPORT void JNICALL
1421 JVM_RawMonitorExit(void *mon);
1424 #ifdef SUPPORT_OLD_REFLECTION
1426 /*
1427 * Support for old native code-based (pre-JDK 1.4) reflection implementation.
1428 * Disabled by default in the product build.
1429 *
1430 * See reflection.hpp for information on SUPPORT_OLD_REFLECTION
1431 */
1433 /*
1434 * reflecting fields and methods.
1435 * which: 0 --- MEMBER_PUBLIC
1436 * 1 --- MEMBER_DECLARED
1437 * NOTE: absent in product build by default
1438 */
1440 JNIEXPORT jobjectArray JNICALL
1441 JVM_GetClassFields(JNIEnv *env, jclass cls, jint which);
1443 JNIEXPORT jobjectArray JNICALL
1444 JVM_GetClassMethods(JNIEnv *env, jclass cls, jint which);
1446 JNIEXPORT jobjectArray JNICALL
1447 JVM_GetClassConstructors(JNIEnv *env, jclass cls, jint which);
1449 JNIEXPORT jobject JNICALL
1450 JVM_GetClassField(JNIEnv *env, jclass cls, jstring name, jint which);
1452 JNIEXPORT jobject JNICALL
1453 JVM_GetClassMethod(JNIEnv *env, jclass cls, jstring name, jobjectArray types,
1454 jint which);
1455 JNIEXPORT jobject JNICALL
1456 JVM_GetClassConstructor(JNIEnv *env, jclass cls, jobjectArray types,
1457 jint which);
1459 /*
1460 * Implements Class.newInstance
1461 */
1462 JNIEXPORT jobject JNICALL
1463 JVM_NewInstance(JNIEnv *env, jclass cls);
1465 /*
1466 * java.lang.reflect.Field
1467 */
1468 JNIEXPORT jobject JNICALL
1469 JVM_GetField(JNIEnv *env, jobject field, jobject obj);
1471 JNIEXPORT jvalue JNICALL
1472 JVM_GetPrimitiveField(JNIEnv *env, jobject field, jobject obj,
1473 unsigned char wCode);
1475 JNIEXPORT void JNICALL
1476 JVM_SetField(JNIEnv *env, jobject field, jobject obj, jobject val);
1478 JNIEXPORT void JNICALL
1479 JVM_SetPrimitiveField(JNIEnv *env, jobject field, jobject obj, jvalue v,
1480 unsigned char vCode);
1482 /*
1483 * java.lang.reflect.Method
1484 */
1485 JNIEXPORT jobject JNICALL
1486 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
1488 /*
1489 * java.lang.reflect.Constructor
1490 */
1491 JNIEXPORT jobject JNICALL
1492 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
1494 #endif /* SUPPORT_OLD_REFLECTION */
1496 /*
1497 * java.lang.management support
1498 */
1499 JNIEXPORT void* JNICALL
1500 JVM_GetManagement(jint version);
1502 /*
1503 * com.sun.tools.attach.VirtualMachine support
1504 *
1505 * Initialize the agent properties with the properties maintained in the VM.
1506 */
1507 JNIEXPORT jobject JNICALL
1508 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1510 /* Generics reflection support.
1511 *
1512 * Returns information about the given class's EnclosingMethod
1513 * attribute, if present, or null if the class had no enclosing
1514 * method.
1515 *
1516 * If non-null, the returned array contains three elements. Element 0
1517 * is the java.lang.Class of which the enclosing method is a member,
1518 * and elements 1 and 2 are the java.lang.Strings for the enclosing
1519 * method's name and descriptor, respectively.
1520 */
1521 JNIEXPORT jobjectArray JNICALL
1522 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1524 /*
1525 * Java thread state support
1526 */
1527 enum {
1528 JAVA_THREAD_STATE_NEW = 0,
1529 JAVA_THREAD_STATE_RUNNABLE = 1,
1530 JAVA_THREAD_STATE_BLOCKED = 2,
1531 JAVA_THREAD_STATE_WAITING = 3,
1532 JAVA_THREAD_STATE_TIMED_WAITING = 4,
1533 JAVA_THREAD_STATE_TERMINATED = 5,
1534 JAVA_THREAD_STATE_COUNT = 6
1535 };
1537 /*
1538 * Returns an array of the threadStatus values representing the
1539 * given Java thread state. Returns NULL if the VM version is
1540 * incompatible with the JDK or doesn't support the given
1541 * Java thread state.
1542 */
1543 JNIEXPORT jintArray JNICALL
1544 JVM_GetThreadStateValues(JNIEnv* env, jint javaThreadState);
1546 /*
1547 * Returns an array of the substate names representing the
1548 * given Java thread state. Returns NULL if the VM version is
1549 * incompatible with the JDK or the VM doesn't support
1550 * the given Java thread state.
1551 * values must be the jintArray returned from JVM_GetThreadStateValues
1552 * and javaThreadState.
1553 */
1554 JNIEXPORT jobjectArray JNICALL
1555 JVM_GetThreadStateNames(JNIEnv* env, jint javaThreadState, jintArray values);
1557 /* =========================================================================
1558 * The following defines a private JVM interface that the JDK can query
1559 * for the JVM version and capabilities. sun.misc.Version defines
1560 * the methods for getting the VM version and its capabilities.
1561 *
1562 * When a new bit is added, the following should be updated to provide
1563 * access to the new capability:
1564 * HS: JVM_GetVersionInfo and Abstract_VM_Version class
1565 * SDK: Version class
1566 *
1567 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for
1568 * JVM to query for the JDK version and capabilities.
1569 *
1570 * When a new bit is added, the following should be updated to provide
1571 * access to the new capability:
1572 * HS: JDK_Version class
1573 * SDK: JDK_GetVersionInfo0
1574 *
1575 * ==========================================================================
1576 */
1577 typedef struct {
1578 /* HotSpot Express VM version string:
1579 * <major>.<minor>-bxx[-<identifier>][-<debug_flavor>]
1580 */
1581 unsigned int jvm_version; /* Consists of major.minor.0.build */
1582 unsigned int update_version : 8; /* 0 in HotSpot Express VM */
1583 unsigned int special_update_version : 8; /* 0 in HotSpot Express VM */
1584 unsigned int reserved1 : 16;
1585 unsigned int reserved2;
1587 /* The following bits represents JVM supports that JDK has dependency on.
1588 * JDK can use these bits to determine which JVM version
1589 * and support it has to maintain runtime compatibility.
1590 *
1591 * When a new bit is added in a minor or update release, make sure
1592 * the new bit is also added in the main/baseline.
1593 */
1594 unsigned int is_attachable : 1;
1595 unsigned int is_kernel_jvm : 1;
1596 unsigned int : 30;
1597 unsigned int : 32;
1598 unsigned int : 32;
1599 } jvm_version_info;
1601 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1602 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1603 // Micro version is 0 in HotSpot Express VM (set in jvm.cpp).
1604 #define JVM_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1605 /* Build number is available in all HotSpot Express VM builds.
1606 * It is defined in make/hotspot_version file.
1607 */
1608 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF))
1610 JNIEXPORT void JNICALL
1611 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size);
1613 typedef struct {
1614 // Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx
1615 unsigned int jdk_version; /* Consists of major, minor, micro (n.n.n) */
1616 /* and build number (xx) */
1617 unsigned int update_version : 8; /* Update release version (uu) */
1618 unsigned int special_update_version : 8; /* Special update release version (c)*/
1619 unsigned int reserved1 : 16;
1620 unsigned int reserved2;
1622 /* The following bits represents new JDK supports that VM has dependency on.
1623 * VM implementation can use these bits to determine which JDK version
1624 * and support it has to maintain runtime compatibility.
1625 *
1626 * When a new bit is added in a minor or update release, make sure
1627 * the new bit is also added in the main/baseline.
1628 */
1629 unsigned int thread_park_blocker : 1;
1630 unsigned int : 31;
1631 unsigned int : 32;
1632 unsigned int : 32;
1633 } jdk_version_info;
1635 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1636 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1637 #define JDK_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1639 /* Build number is available only for RE build (i.e. JDK_BUILD_NUMBER is set to bNN)
1640 * It will be zero for internal builds.
1641 */
1642 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF))
1644 /*
1645 * This is the function JDK_GetVersionInfo0 defined in libjava.so
1646 * that is dynamically looked up by JVM.
1647 */
1648 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size);
1650 /*
1651 * This structure is used by the launcher to get the default thread
1652 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1653 * version of 1.1. As it is not supported otherwise, it has been removed
1654 * from jni.h
1655 */
1656 typedef struct JDK1_1InitArgs {
1657 jint version;
1659 char **properties;
1660 jint checkSource;
1661 jint nativeStackSize;
1662 jint javaStackSize;
1663 jint minHeapSize;
1664 jint maxHeapSize;
1665 jint verifyMode;
1666 char *classpath;
1668 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1669 void (JNICALL *exit)(jint code);
1670 void (JNICALL *abort)(void);
1672 jint enableClassGC;
1673 jint enableVerboseGC;
1674 jint disableAsyncGC;
1675 jint verbose;
1676 jboolean debugging;
1677 jint debugPort;
1678 } JDK1_1InitArgs;
1680 #ifdef __cplusplus
1681 } /* extern "C" */
1682 #endif /* __cplusplus */
1684 #endif /* !_JAVASOFT_JVM_H_ */
