Mercurial > jdk8-mips64-public > hotspot / file revision
src/share/vm/prims/jvm.h@f95d63e2154a
src/share/vm/prims/jvm.h
Tue, 23 Nov 2010 13:22:55 -0800
- author
- stefank
- date
- Tue, 23 Nov 2010 13:22:55 -0800
- changeset 2314
- f95d63e2154a
- parent 2268
- 3b2dea75431e
- child 2322
- 828eafbd85cc
- child 2353
- dad31fc330cd
- permissions
- -rw-r--r--
6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg
1 /*
2 * Copyright (c) 1997, 2010, 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 */
25 #ifndef SHARE_VM_PRIMS_JVM_H
26 #define SHARE_VM_PRIMS_JVM_H
28 #include "prims/jni.h"
29 #include "runtime/reflectionCompat.hpp"
30 #include "utilities/globalDefinitions.hpp"
31 #ifdef TARGET_OS_FAMILY_linux
32 # include "jvm_linux.h"
33 #endif
34 #ifdef TARGET_OS_FAMILY_solaris
35 # include "jvm_solaris.h"
36 #endif
37 #ifdef TARGET_OS_FAMILY_windows
38 # include "jvm_windows.h"
39 #endif
41 #ifndef _JAVASOFT_JVM_H_
42 #define _JAVASOFT_JVM_H_
44 // HotSpot integration note:
45 //
46 // This file and jvm.h used with the JDK are identical,
47 // except for the three includes removed below and the
48 // SUPPORT_OLD_REFLECTION sections cut out of the JDK's jvm.h.
50 // #include <sys/stat.h>
51 // #include "jni.h"
52 // #include "jvm_md.h"
55 #ifdef __cplusplus
56 extern "C" {
57 #endif
59 /*
60 * This file contains additional functions exported from the VM.
61 * These functions are complementary to the standard JNI support.
62 * There are three parts to this file:
63 *
64 * First, this file contains the VM-related functions needed by native
65 * libraries in the standard Java API. For example, the java.lang.Object
66 * class needs VM-level functions that wait for and notify monitors.
67 *
68 * Second, this file contains the functions and constant definitions
69 * needed by the byte code verifier and class file format checker.
70 * These functions allow the verifier and format checker to be written
71 * in a VM-independent way.
72 *
73 * Third, this file contains various I/O and nerwork operations needed
74 * by the standard Java I/O and network APIs.
75 */
77 /*
78 * Bump the version number when either of the following happens:
79 *
80 * 1. There is a change in JVM_* functions.
81 *
82 * 2. There is a change in the contract between VM and Java classes.
83 * For example, if the VM relies on a new private field in Thread
84 * class.
85 */
87 #define JVM_INTERFACE_VERSION 4
90 JNIEXPORT jint JNICALL
91 JVM_GetInterfaceVersion(void);
93 /*************************************************************************
94 PART 1: Functions for Native Libraries
95 ************************************************************************/
96 /*
97 * java.lang.Object
98 */
99 JNIEXPORT jint JNICALL
100 JVM_IHashCode(JNIEnv *env, jobject obj);
102 JNIEXPORT void JNICALL
103 JVM_MonitorWait(JNIEnv *env, jobject obj, jlong ms);
105 JNIEXPORT void JNICALL
106 JVM_MonitorNotify(JNIEnv *env, jobject obj);
108 JNIEXPORT void JNICALL
109 JVM_MonitorNotifyAll(JNIEnv *env, jobject obj);
111 JNIEXPORT jobject JNICALL
112 JVM_Clone(JNIEnv *env, jobject obj);
114 /*
115 * java.lang.String
116 */
117 JNIEXPORT jstring JNICALL
118 JVM_InternString(JNIEnv *env, jstring str);
120 /*
121 * java.lang.System
122 */
123 JNIEXPORT jlong JNICALL
124 JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored);
126 JNIEXPORT jlong JNICALL
127 JVM_NanoTime(JNIEnv *env, jclass ignored);
129 JNIEXPORT void JNICALL
130 JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos,
131 jobject dst, jint dst_pos, jint length);
133 JNIEXPORT jobject JNICALL
134 JVM_InitProperties(JNIEnv *env, jobject p);
136 /*
137 * java.io.File
138 */
139 JNIEXPORT void JNICALL
140 JVM_OnExit(void (*func)(void));
142 /*
143 * java.lang.Runtime
144 */
145 JNIEXPORT void JNICALL
146 JVM_Exit(jint code);
148 JNIEXPORT void JNICALL
149 JVM_Halt(jint code);
151 JNIEXPORT void JNICALL
152 JVM_GC(void);
154 /* Returns the number of real-time milliseconds that have elapsed since the
155 * least-recently-inspected heap object was last inspected by the garbage
156 * collector.
157 *
158 * For simple stop-the-world collectors this value is just the time
159 * since the most recent collection. For generational collectors it is the
160 * time since the oldest generation was most recently collected. Other
161 * collectors are free to return a pessimistic estimate of the elapsed time, or
162 * simply the time since the last full collection was performed.
163 *
164 * Note that in the presence of reference objects, a given object that is no
165 * longer strongly reachable may have to be inspected multiple times before it
166 * can be reclaimed.
167 */
168 JNIEXPORT jlong JNICALL
169 JVM_MaxObjectInspectionAge(void);
171 JNIEXPORT void JNICALL
172 JVM_TraceInstructions(jboolean on);
174 JNIEXPORT void JNICALL
175 JVM_TraceMethodCalls(jboolean on);
177 JNIEXPORT jlong JNICALL
178 JVM_TotalMemory(void);
180 JNIEXPORT jlong JNICALL
181 JVM_FreeMemory(void);
183 JNIEXPORT jlong JNICALL
184 JVM_MaxMemory(void);
186 JNIEXPORT jint JNICALL
187 JVM_ActiveProcessorCount(void);
189 JNIEXPORT void * JNICALL
190 JVM_LoadLibrary(const char *name);
192 JNIEXPORT void JNICALL
193 JVM_UnloadLibrary(void * handle);
195 JNIEXPORT void * JNICALL
196 JVM_FindLibraryEntry(void *handle, const char *name);
198 JNIEXPORT jboolean JNICALL
199 JVM_IsSupportedJNIVersion(jint version);
201 /*
202 * java.lang.Float and java.lang.Double
203 */
204 JNIEXPORT jboolean JNICALL
205 JVM_IsNaN(jdouble d);
207 /*
208 * java.lang.Throwable
209 */
210 JNIEXPORT void JNICALL
211 JVM_FillInStackTrace(JNIEnv *env, jobject throwable);
213 JNIEXPORT void JNICALL
214 JVM_PrintStackTrace(JNIEnv *env, jobject throwable, jobject printable);
216 JNIEXPORT jint JNICALL
217 JVM_GetStackTraceDepth(JNIEnv *env, jobject throwable);
219 JNIEXPORT jobject JNICALL
220 JVM_GetStackTraceElement(JNIEnv *env, jobject throwable, jint index);
222 /*
223 * java.lang.Compiler
224 */
225 JNIEXPORT void JNICALL
226 JVM_InitializeCompiler (JNIEnv *env, jclass compCls);
228 JNIEXPORT jboolean JNICALL
229 JVM_IsSilentCompiler(JNIEnv *env, jclass compCls);
231 JNIEXPORT jboolean JNICALL
232 JVM_CompileClass(JNIEnv *env, jclass compCls, jclass cls);
234 JNIEXPORT jboolean JNICALL
235 JVM_CompileClasses(JNIEnv *env, jclass cls, jstring jname);
237 JNIEXPORT jobject JNICALL
238 JVM_CompilerCommand(JNIEnv *env, jclass compCls, jobject arg);
240 JNIEXPORT void JNICALL
241 JVM_EnableCompiler(JNIEnv *env, jclass compCls);
243 JNIEXPORT void JNICALL
244 JVM_DisableCompiler(JNIEnv *env, jclass compCls);
246 /*
247 * java.lang.Thread
248 */
249 JNIEXPORT void JNICALL
250 JVM_StartThread(JNIEnv *env, jobject thread);
252 JNIEXPORT void JNICALL
253 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception);
255 JNIEXPORT jboolean JNICALL
256 JVM_IsThreadAlive(JNIEnv *env, jobject thread);
258 JNIEXPORT void JNICALL
259 JVM_SuspendThread(JNIEnv *env, jobject thread);
261 JNIEXPORT void JNICALL
262 JVM_ResumeThread(JNIEnv *env, jobject thread);
264 JNIEXPORT void JNICALL
265 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio);
267 JNIEXPORT void JNICALL
268 JVM_Yield(JNIEnv *env, jclass threadClass);
270 JNIEXPORT void JNICALL
271 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis);
273 JNIEXPORT jobject JNICALL
274 JVM_CurrentThread(JNIEnv *env, jclass threadClass);
276 JNIEXPORT jint JNICALL
277 JVM_CountStackFrames(JNIEnv *env, jobject thread);
279 JNIEXPORT void JNICALL
280 JVM_Interrupt(JNIEnv *env, jobject thread);
282 JNIEXPORT jboolean JNICALL
283 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted);
285 JNIEXPORT jboolean JNICALL
286 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);
288 JNIEXPORT void JNICALL
289 JVM_DumpAllStacks(JNIEnv *env, jclass unused);
291 JNIEXPORT jobjectArray JNICALL
292 JVM_GetAllThreads(JNIEnv *env, jclass dummy);
294 /* getStackTrace() and getAllStackTraces() method */
295 JNIEXPORT jobjectArray JNICALL
296 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
298 /*
299 * java.lang.SecurityManager
300 */
301 JNIEXPORT jclass JNICALL
302 JVM_CurrentLoadedClass(JNIEnv *env);
304 JNIEXPORT jobject JNICALL
305 JVM_CurrentClassLoader(JNIEnv *env);
307 JNIEXPORT jobjectArray JNICALL
308 JVM_GetClassContext(JNIEnv *env);
310 JNIEXPORT jint JNICALL
311 JVM_ClassDepth(JNIEnv *env, jstring name);
313 JNIEXPORT jint JNICALL
314 JVM_ClassLoaderDepth(JNIEnv *env);
316 /*
317 * java.lang.Package
318 */
319 JNIEXPORT jstring JNICALL
320 JVM_GetSystemPackage(JNIEnv *env, jstring name);
322 JNIEXPORT jobjectArray JNICALL
323 JVM_GetSystemPackages(JNIEnv *env);
325 /*
326 * java.io.ObjectInputStream
327 */
328 JNIEXPORT jobject JNICALL
329 JVM_AllocateNewObject(JNIEnv *env, jobject obj, jclass currClass,
330 jclass initClass);
332 JNIEXPORT jobject JNICALL
333 JVM_AllocateNewArray(JNIEnv *env, jobject obj, jclass currClass,
334 jint length);
336 JNIEXPORT jobject JNICALL
337 JVM_LatestUserDefinedLoader(JNIEnv *env);
339 /*
340 * This function has been deprecated and should not be considered
341 * part of the specified JVM interface.
342 */
343 JNIEXPORT jclass JNICALL
344 JVM_LoadClass0(JNIEnv *env, jobject obj, jclass currClass,
345 jstring currClassName);
347 /*
348 * java.lang.reflect.Array
349 */
350 JNIEXPORT jint JNICALL
351 JVM_GetArrayLength(JNIEnv *env, jobject arr);
353 JNIEXPORT jobject JNICALL
354 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
356 JNIEXPORT jvalue JNICALL
357 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
359 JNIEXPORT void JNICALL
360 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
362 JNIEXPORT void JNICALL
363 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
364 unsigned char vCode);
366 JNIEXPORT jobject JNICALL
367 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
369 JNIEXPORT jobject JNICALL
370 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
372 /*
373 * java.lang.Class and java.lang.ClassLoader
374 */
375 /*
376 * Returns the class in which the code invoking the native method
377 * belongs.
378 *
379 * Note that in JDK 1.1, native methods did not create a frame.
380 * In 1.2, they do. Therefore native methods like Class.forName
381 * can no longer look at the current frame for the caller class.
382 */
383 JNIEXPORT jclass JNICALL
384 JVM_GetCallerClass(JNIEnv *env, int n);
386 /*
387 * Find primitive classes
388 * utf: class name
389 */
390 JNIEXPORT jclass JNICALL
391 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
393 /*
394 * Link the class
395 */
396 JNIEXPORT void JNICALL
397 JVM_ResolveClass(JNIEnv *env, jclass cls);
399 /*
400 * Find a class from a given class loader. Throw ClassNotFoundException
401 * or NoClassDefFoundError depending on the value of the last
402 * argument.
403 */
404 JNIEXPORT jclass JNICALL
405 JVM_FindClassFromClassLoader(JNIEnv *env, const char *name, jboolean init,
406 jobject loader, jboolean throwError);
408 /*
409 * Find a class from a boot class loader. Returns NULL if class not found.
410 */
411 JNIEXPORT jclass JNICALL
412 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
414 /*
415 * Find a class from a given class.
416 */
417 JNIEXPORT jclass JNICALL
418 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
419 jclass from);
421 /* Find a loaded class cached by the VM */
422 JNIEXPORT jclass JNICALL
423 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
425 /* Define a class */
426 JNIEXPORT jclass JNICALL
427 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
428 jsize len, jobject pd);
430 /* Define a class with a source (added in JDK1.5) */
431 JNIEXPORT jclass JNICALL
432 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
433 const jbyte *buf, jsize len, jobject pd,
434 const char *source);
436 /* Define a class with a source with conditional verification (added HSX 14)
437 * -Xverify:all will verify anyway, -Xverify:none will not verify,
438 * -Xverify:remote (default) will obey this conditional
439 * i.e. true = should_verify_class
440 */
441 JNIEXPORT jclass JNICALL
442 JVM_DefineClassWithSourceCond(JNIEnv *env, const char *name,
443 jobject loader, const jbyte *buf,
444 jsize len, jobject pd, const char *source,
445 jboolean verify);
447 /* Define a class with a source (MLVM) */
448 JNIEXPORT jclass JNICALL
449 JVM_DefineClassWithCP(JNIEnv *env, const char *name, jobject loader,
450 const jbyte *buf, jsize len, jobject pd,
451 const char *source,
452 // same args as JVM_DefineClassWithSource to this point
453 jobjectArray constants);
455 /*
456 * Reflection support functions
457 */
459 JNIEXPORT jstring JNICALL
460 JVM_GetClassName(JNIEnv *env, jclass cls);
462 JNIEXPORT jobjectArray JNICALL
463 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
465 JNIEXPORT jobject JNICALL
466 JVM_GetClassLoader(JNIEnv *env, jclass cls);
468 JNIEXPORT jboolean JNICALL
469 JVM_IsInterface(JNIEnv *env, jclass cls);
471 JNIEXPORT jobjectArray JNICALL
472 JVM_GetClassSigners(JNIEnv *env, jclass cls);
474 JNIEXPORT void JNICALL
475 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
477 JNIEXPORT jobject JNICALL
478 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
480 JNIEXPORT void JNICALL
481 JVM_SetProtectionDomain(JNIEnv *env, jclass cls, jobject protection_domain);
483 JNIEXPORT jboolean JNICALL
484 JVM_IsArrayClass(JNIEnv *env, jclass cls);
486 JNIEXPORT jboolean JNICALL
487 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
489 JNIEXPORT jclass JNICALL
490 JVM_GetComponentType(JNIEnv *env, jclass cls);
492 JNIEXPORT jint JNICALL
493 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
495 JNIEXPORT jobjectArray JNICALL
496 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
498 JNIEXPORT jclass JNICALL
499 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
501 /* Generics support (JDK 1.5) */
502 JNIEXPORT jstring JNICALL
503 JVM_GetClassSignature(JNIEnv *env, jclass cls);
505 /* Annotations support (JDK 1.5) */
506 JNIEXPORT jbyteArray JNICALL
507 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
509 /* Annotations support (JDK 1.6) */
511 // field is a handle to a java.lang.reflect.Field object
512 JNIEXPORT jbyteArray JNICALL
513 JVM_GetFieldAnnotations(JNIEnv *env, jobject field);
515 // method is a handle to a java.lang.reflect.Method object
516 JNIEXPORT jbyteArray JNICALL
517 JVM_GetMethodAnnotations(JNIEnv *env, jobject method);
519 // method is a handle to a java.lang.reflect.Method object
520 JNIEXPORT jbyteArray JNICALL
521 JVM_GetMethodDefaultAnnotationValue(JNIEnv *env, jobject method);
523 // method is a handle to a java.lang.reflect.Method object
524 JNIEXPORT jbyteArray JNICALL
525 JVM_GetMethodParameterAnnotations(JNIEnv *env, jobject method);
528 /*
529 * New (JDK 1.4) reflection implementation
530 */
532 JNIEXPORT jobjectArray JNICALL
533 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
535 JNIEXPORT jobjectArray JNICALL
536 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
538 JNIEXPORT jobjectArray JNICALL
539 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
541 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
542 This returns the access flags for the class as specified in the
543 class file rather than searching the InnerClasses attribute (if
544 present) to find the source-level access flags. Only the values of
545 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
546 valid. */
547 JNIEXPORT jint JNICALL
548 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
550 /*
551 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
552 */
554 JNIEXPORT jobject JNICALL
555 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
557 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
558 (JNIEnv *env, jobject unused, jobject jcpool);
560 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
561 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
563 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
564 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
566 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
567 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
569 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
570 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
572 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
573 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
575 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
576 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
578 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
579 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
581 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
582 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
584 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
585 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
587 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
588 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
590 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
591 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
593 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
594 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
596 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
597 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
599 /*
600 * java.security.*
601 */
603 JNIEXPORT jobject JNICALL
604 JVM_DoPrivileged(JNIEnv *env, jclass cls,
605 jobject action, jobject context, jboolean wrapException);
607 JNIEXPORT jobject JNICALL
608 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
610 JNIEXPORT jobject JNICALL
611 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
613 /*
614 * Signal support, used to implement the shutdown sequence. Every VM must
615 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
616 * (^C) and the latter for external termination (kill, system shutdown, etc.).
617 * Other platform-dependent signal values may also be supported.
618 */
620 JNIEXPORT void * JNICALL
621 JVM_RegisterSignal(jint sig, void *handler);
623 JNIEXPORT jboolean JNICALL
624 JVM_RaiseSignal(jint sig);
626 JNIEXPORT jint JNICALL
627 JVM_FindSignal(const char *name);
629 /*
630 * Retrieve the assertion directives for the specified class.
631 */
632 JNIEXPORT jboolean JNICALL
633 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
635 /*
636 * Retrieve the assertion directives from the VM.
637 */
638 JNIEXPORT jobject JNICALL
639 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
641 /*
642 * sun.misc.AtomicLong
643 */
644 JNIEXPORT jboolean JNICALL
645 JVM_SupportsCX8(void);
647 JNIEXPORT jboolean JNICALL
648 JVM_CX8Field(JNIEnv *env, jobject obj, jfieldID fldID, jlong oldVal, jlong newVal);
650 /*
651 * com.sun.dtrace.jsdt support
652 */
654 #define JVM_TRACING_DTRACE_VERSION 1
656 /*
657 * Structure to pass one probe description to JVM.
658 *
659 * The VM will overwrite the definition of the referenced method with
660 * code that will fire the probe.
661 */
662 typedef struct {
663 jmethodID method;
664 jstring function;
665 jstring name;
666 void* reserved[4]; // for future use
667 } JVM_DTraceProbe;
669 /**
670 * Encapsulates the stability ratings for a DTrace provider field
671 */
672 typedef struct {
673 jint nameStability;
674 jint dataStability;
675 jint dependencyClass;
676 } JVM_DTraceInterfaceAttributes;
678 /*
679 * Structure to pass one provider description to JVM
680 */
681 typedef struct {
682 jstring name;
683 JVM_DTraceProbe* probes;
684 jint probe_count;
685 JVM_DTraceInterfaceAttributes providerAttributes;
686 JVM_DTraceInterfaceAttributes moduleAttributes;
687 JVM_DTraceInterfaceAttributes functionAttributes;
688 JVM_DTraceInterfaceAttributes nameAttributes;
689 JVM_DTraceInterfaceAttributes argsAttributes;
690 void* reserved[4]; // for future use
691 } JVM_DTraceProvider;
693 /*
694 * Get the version number the JVM was built with
695 */
696 JNIEXPORT jint JNICALL
697 JVM_DTraceGetVersion(JNIEnv* env);
699 /*
700 * Register new probe with given signature, return global handle
701 *
702 * The version passed in is the version that the library code was
703 * built with.
704 */
705 JNIEXPORT jlong JNICALL
706 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name,
707 jint providers_count, JVM_DTraceProvider* providers);
709 /*
710 * Check JSDT probe
711 */
712 JNIEXPORT jboolean JNICALL
713 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method);
715 /*
716 * Destroy custom DOF
717 */
718 JNIEXPORT void JNICALL
719 JVM_DTraceDispose(JNIEnv* env, jlong handle);
721 /*
722 * Check to see if DTrace is supported by OS
723 */
724 JNIEXPORT jboolean JNICALL
725 JVM_DTraceIsSupported(JNIEnv* env);
727 /*************************************************************************
728 PART 2: Support for the Verifier and Class File Format Checker
729 ************************************************************************/
730 /*
731 * Return the class name in UTF format. The result is valid
732 * until JVM_ReleaseUTf is called.
733 *
734 * The caller must treat the string as a constant and not modify it
735 * in any way.
736 */
737 JNIEXPORT const char * JNICALL
738 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
740 /*
741 * Returns the constant pool types in the buffer provided by "types."
742 */
743 JNIEXPORT void JNICALL
744 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
746 /*
747 * Returns the number of Constant Pool entries.
748 */
749 JNIEXPORT jint JNICALL
750 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
752 /*
753 * Returns the number of *declared* fields or methods.
754 */
755 JNIEXPORT jint JNICALL
756 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
758 JNIEXPORT jint JNICALL
759 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
761 /*
762 * Returns the CP indexes of exceptions raised by a given method.
763 * Places the result in the given buffer.
764 *
765 * The method is identified by method_index.
766 */
767 JNIEXPORT void JNICALL
768 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
769 unsigned short *exceptions);
770 /*
771 * Returns the number of exceptions raised by a given method.
772 * The method is identified by method_index.
773 */
774 JNIEXPORT jint JNICALL
775 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
777 /*
778 * Returns the byte code sequence of a given method.
779 * Places the result in the given buffer.
780 *
781 * The method is identified by method_index.
782 */
783 JNIEXPORT void JNICALL
784 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
785 unsigned char *code);
787 /*
788 * Returns the length of the byte code sequence of a given method.
789 * The method is identified by method_index.
790 */
791 JNIEXPORT jint JNICALL
792 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
794 /*
795 * A structure used to a capture exception table entry in a Java method.
796 */
797 typedef struct {
798 jint start_pc;
799 jint end_pc;
800 jint handler_pc;
801 jint catchType;
802 } JVM_ExceptionTableEntryType;
804 /*
805 * Returns the exception table entry at entry_index of a given method.
806 * Places the result in the given buffer.
807 *
808 * The method is identified by method_index.
809 */
810 JNIEXPORT void JNICALL
811 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
812 jint entry_index,
813 JVM_ExceptionTableEntryType *entry);
815 /*
816 * Returns the length of the exception table of a given method.
817 * The method is identified by method_index.
818 */
819 JNIEXPORT jint JNICALL
820 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
822 /*
823 * Returns the modifiers of a given field.
824 * The field is identified by field_index.
825 */
826 JNIEXPORT jint JNICALL
827 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
829 /*
830 * Returns the modifiers of a given method.
831 * The method is identified by method_index.
832 */
833 JNIEXPORT jint JNICALL
834 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
836 /*
837 * Returns the number of local variables of a given method.
838 * The method is identified by method_index.
839 */
840 JNIEXPORT jint JNICALL
841 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
843 /*
844 * Returns the number of arguments (including this pointer) of a given method.
845 * The method is identified by method_index.
846 */
847 JNIEXPORT jint JNICALL
848 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
850 /*
851 * Returns the maximum amount of stack (in words) used by a given method.
852 * The method is identified by method_index.
853 */
854 JNIEXPORT jint JNICALL
855 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
857 /*
858 * Is a given method a constructor.
859 * The method is identified by method_index.
860 */
861 JNIEXPORT jboolean JNICALL
862 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
864 /*
865 * Returns the name of a given method in UTF format.
866 * The result remains valid until JVM_ReleaseUTF is called.
867 *
868 * The caller must treat the string as a constant and not modify it
869 * in any way.
870 */
871 JNIEXPORT const char * JNICALL
872 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
874 /*
875 * Returns the signature of a given method in UTF format.
876 * The result remains valid until JVM_ReleaseUTF is called.
877 *
878 * The caller must treat the string as a constant and not modify it
879 * in any way.
880 */
881 JNIEXPORT const char * JNICALL
882 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
884 /*
885 * Returns the name of the field refered to at a given constant pool
886 * index.
887 *
888 * The result is in UTF format and remains valid until JVM_ReleaseUTF
889 * is called.
890 *
891 * The caller must treat the string as a constant and not modify it
892 * in any way.
893 */
894 JNIEXPORT const char * JNICALL
895 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
897 /*
898 * Returns the name of the method refered to at a given constant pool
899 * index.
900 *
901 * The result is in UTF format and remains valid until JVM_ReleaseUTF
902 * is called.
903 *
904 * The caller must treat the string as a constant and not modify it
905 * in any way.
906 */
907 JNIEXPORT const char * JNICALL
908 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
910 /*
911 * Returns the signature of the method refered to at a given constant pool
912 * index.
913 *
914 * The result is in UTF format and remains valid until JVM_ReleaseUTF
915 * is called.
916 *
917 * The caller must treat the string as a constant and not modify it
918 * in any way.
919 */
920 JNIEXPORT const char * JNICALL
921 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
923 /*
924 * Returns the signature of the field refered to at a given constant pool
925 * index.
926 *
927 * The result is in UTF format and remains valid until JVM_ReleaseUTF
928 * is called.
929 *
930 * The caller must treat the string as a constant and not modify it
931 * in any way.
932 */
933 JNIEXPORT const char * JNICALL
934 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
936 /*
937 * Returns the class name refered to at a given constant pool index.
938 *
939 * The result is in UTF format and remains valid until JVM_ReleaseUTF
940 * is called.
941 *
942 * The caller must treat the string as a constant and not modify it
943 * in any way.
944 */
945 JNIEXPORT const char * JNICALL
946 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
948 /*
949 * Returns the class name refered to at a given constant pool index.
950 *
951 * The constant pool entry must refer to a CONSTANT_Fieldref.
952 *
953 * The result is in UTF format and remains valid until JVM_ReleaseUTF
954 * is called.
955 *
956 * The caller must treat the string as a constant and not modify it
957 * in any way.
958 */
959 JNIEXPORT const char * JNICALL
960 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
962 /*
963 * Returns the class name refered to at a given constant pool index.
964 *
965 * The constant pool entry must refer to CONSTANT_Methodref or
966 * CONSTANT_InterfaceMethodref.
967 *
968 * The result is in UTF format and remains valid until JVM_ReleaseUTF
969 * is called.
970 *
971 * The caller must treat the string as a constant and not modify it
972 * in any way.
973 */
974 JNIEXPORT const char * JNICALL
975 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
977 /*
978 * Returns the modifiers of a field in calledClass. The field is
979 * referred to in class cb at constant pool entry index.
980 *
981 * The caller must treat the string as a constant and not modify it
982 * in any way.
983 *
984 * Returns -1 if the field does not exist in calledClass.
985 */
986 JNIEXPORT jint JNICALL
987 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
989 /*
990 * Returns the modifiers of a method in calledClass. The method is
991 * referred to in class cb at constant pool entry index.
992 *
993 * Returns -1 if the method does not exist in calledClass.
994 */
995 JNIEXPORT jint JNICALL
996 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
998 /*
999 * Releases the UTF string obtained from the VM.
1000 */
1001 JNIEXPORT void JNICALL
1002 JVM_ReleaseUTF(const char *utf);
1004 /*
1005 * Compare if two classes are in the same package.
1006 */
1007 JNIEXPORT jboolean JNICALL
1008 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
1010 /* Constants in class files */
1012 #define JVM_ACC_PUBLIC 0x0001 /* visible to everyone */
1013 #define JVM_ACC_PRIVATE 0x0002 /* visible only to the defining class */
1014 #define JVM_ACC_PROTECTED 0x0004 /* visible to subclasses */
1015 #define JVM_ACC_STATIC 0x0008 /* instance variable is static */
1016 #define JVM_ACC_FINAL 0x0010 /* no further subclassing, overriding */
1017 #define JVM_ACC_SYNCHRONIZED 0x0020 /* wrap method call in monitor lock */
1018 #define JVM_ACC_SUPER 0x0020 /* funky handling of invokespecial */
1019 #define JVM_ACC_VOLATILE 0x0040 /* can not cache in registers */
1020 #define JVM_ACC_BRIDGE 0x0040 /* bridge method generated by compiler */
1021 #define JVM_ACC_TRANSIENT 0x0080 /* not persistent */
1022 #define JVM_ACC_VARARGS 0x0080 /* method declared with variable number of args */
1023 #define JVM_ACC_NATIVE 0x0100 /* implemented in C */
1024 #define JVM_ACC_INTERFACE 0x0200 /* class is an interface */
1025 #define JVM_ACC_ABSTRACT 0x0400 /* no definition provided */
1026 #define JVM_ACC_STRICT 0x0800 /* strict floating point */
1027 #define JVM_ACC_SYNTHETIC 0x1000 /* compiler-generated class, method or field */
1028 #define JVM_ACC_ANNOTATION 0x2000 /* annotation type */
1029 #define JVM_ACC_ENUM 0x4000 /* field is declared as element of enum */
1031 #define JVM_ACC_PUBLIC_BIT 0
1032 #define JVM_ACC_PRIVATE_BIT 1
1033 #define JVM_ACC_PROTECTED_BIT 2
1034 #define JVM_ACC_STATIC_BIT 3
1035 #define JVM_ACC_FINAL_BIT 4
1036 #define JVM_ACC_SYNCHRONIZED_BIT 5
1037 #define JVM_ACC_SUPER_BIT 5
1038 #define JVM_ACC_VOLATILE_BIT 6
1039 #define JVM_ACC_BRIDGE_BIT 6
1040 #define JVM_ACC_TRANSIENT_BIT 7
1041 #define JVM_ACC_VARARGS_BIT 7
1042 #define JVM_ACC_NATIVE_BIT 8
1043 #define JVM_ACC_INTERFACE_BIT 9
1044 #define JVM_ACC_ABSTRACT_BIT 10
1045 #define JVM_ACC_STRICT_BIT 11
1046 #define JVM_ACC_SYNTHETIC_BIT 12
1047 #define JVM_ACC_ANNOTATION_BIT 13
1048 #define JVM_ACC_ENUM_BIT 14
1050 // NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/utilities/ConstantTag.java
1051 enum {
1052 JVM_CONSTANT_Utf8 = 1,
1053 JVM_CONSTANT_Unicode, /* unused */
1054 JVM_CONSTANT_Integer,
1055 JVM_CONSTANT_Float,
1056 JVM_CONSTANT_Long,
1057 JVM_CONSTANT_Double,
1058 JVM_CONSTANT_Class,
1059 JVM_CONSTANT_String,
1060 JVM_CONSTANT_Fieldref,
1061 JVM_CONSTANT_Methodref,
1062 JVM_CONSTANT_InterfaceMethodref,
1063 JVM_CONSTANT_NameAndType,
1064 JVM_CONSTANT_MethodHandle = 15, // JSR 292
1065 JVM_CONSTANT_MethodType = 16, // JSR 292
1066 JVM_CONSTANT_InvokeDynamicTrans = 17, // JSR 292, only occurs in old class files
1067 JVM_CONSTANT_InvokeDynamic = 18 // JSR 292
1068 };
1070 /* JVM_CONSTANT_MethodHandle subtypes */
1071 enum {
1072 JVM_REF_getField = 1,
1073 JVM_REF_getStatic = 2,
1074 JVM_REF_putField = 3,
1075 JVM_REF_putStatic = 4,
1076 JVM_REF_invokeVirtual = 5,
1077 JVM_REF_invokeStatic = 6,
1078 JVM_REF_invokeSpecial = 7,
1079 JVM_REF_newInvokeSpecial = 8,
1080 JVM_REF_invokeInterface = 9
1081 };
1083 /* Used in the newarray instruction. */
1085 #define JVM_T_BOOLEAN 4
1086 #define JVM_T_CHAR 5
1087 #define JVM_T_FLOAT 6
1088 #define JVM_T_DOUBLE 7
1089 #define JVM_T_BYTE 8
1090 #define JVM_T_SHORT 9
1091 #define JVM_T_INT 10
1092 #define JVM_T_LONG 11
1094 /* JVM method signatures */
1096 #define JVM_SIGNATURE_ARRAY '['
1097 #define JVM_SIGNATURE_BYTE 'B'
1098 #define JVM_SIGNATURE_CHAR 'C'
1099 #define JVM_SIGNATURE_CLASS 'L'
1100 #define JVM_SIGNATURE_ENDCLASS ';'
1101 #define JVM_SIGNATURE_ENUM 'E'
1102 #define JVM_SIGNATURE_FLOAT 'F'
1103 #define JVM_SIGNATURE_DOUBLE 'D'
1104 #define JVM_SIGNATURE_FUNC '('
1105 #define JVM_SIGNATURE_ENDFUNC ')'
1106 #define JVM_SIGNATURE_INT 'I'
1107 #define JVM_SIGNATURE_LONG 'J'
1108 #define JVM_SIGNATURE_SHORT 'S'
1109 #define JVM_SIGNATURE_VOID 'V'
1110 #define JVM_SIGNATURE_BOOLEAN 'Z'
1112 /*
1113 * A function defined by the byte-code verifier and called by the VM.
1114 * This is not a function implemented in the VM.
1115 *
1116 * Returns JNI_FALSE if verification fails. A detailed error message
1117 * will be places in msg_buf, whose length is specified by buf_len.
1118 */
1119 typedef jboolean (*verifier_fn_t)(JNIEnv *env,
1120 jclass cb,
1121 char * msg_buf,
1122 jint buf_len);
1125 /*
1126 * Support for a VM-independent class format checker.
1127 */
1128 typedef struct {
1129 unsigned long code; /* byte code */
1130 unsigned long excs; /* exceptions */
1131 unsigned long etab; /* catch table */
1132 unsigned long lnum; /* line number */
1133 unsigned long lvar; /* local vars */
1134 } method_size_info;
1136 typedef struct {
1137 unsigned int constants; /* constant pool */
1138 unsigned int fields;
1139 unsigned int methods;
1140 unsigned int interfaces;
1141 unsigned int fields2; /* number of static 2-word fields */
1142 unsigned int innerclasses; /* # of records in InnerClasses attr */
1144 method_size_info clinit; /* memory used in clinit */
1145 method_size_info main; /* used everywhere else */
1146 } class_size_info;
1148 /*
1149 * Functions defined in libjava.so to perform string conversions.
1150 *
1151 */
1153 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str);
1155 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b);
1157 /* This is the function defined in libjava.so that performs class
1158 * format checks. This functions fills in size information about
1159 * the class file and returns:
1160 *
1161 * 0: good
1162 * -1: out of memory
1163 * -2: bad format
1164 * -3: unsupported version
1165 * -4: bad class name
1166 */
1168 typedef jint (*check_format_fn_t)(char *class_name,
1169 unsigned char *data,
1170 unsigned int data_size,
1171 class_size_info *class_size,
1172 char *message_buffer,
1173 jint buffer_length,
1174 jboolean measure_only,
1175 jboolean check_relaxed);
1177 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1178 JVM_ACC_FINAL | \
1179 JVM_ACC_SUPER | \
1180 JVM_ACC_INTERFACE | \
1181 JVM_ACC_ABSTRACT | \
1182 JVM_ACC_ANNOTATION | \
1183 JVM_ACC_ENUM | \
1184 JVM_ACC_SYNTHETIC)
1186 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1187 JVM_ACC_PRIVATE | \
1188 JVM_ACC_PROTECTED | \
1189 JVM_ACC_STATIC | \
1190 JVM_ACC_FINAL | \
1191 JVM_ACC_VOLATILE | \
1192 JVM_ACC_TRANSIENT | \
1193 JVM_ACC_ENUM | \
1194 JVM_ACC_SYNTHETIC)
1196 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1197 JVM_ACC_PRIVATE | \
1198 JVM_ACC_PROTECTED | \
1199 JVM_ACC_STATIC | \
1200 JVM_ACC_FINAL | \
1201 JVM_ACC_SYNCHRONIZED | \
1202 JVM_ACC_BRIDGE | \
1203 JVM_ACC_VARARGS | \
1204 JVM_ACC_NATIVE | \
1205 JVM_ACC_ABSTRACT | \
1206 JVM_ACC_STRICT | \
1207 JVM_ACC_SYNTHETIC)
1209 /*
1210 * This is the function defined in libjava.so to perform path
1211 * canonicalization. VM call this function before opening jar files
1212 * to load system classes.
1213 *
1214 */
1216 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len);
1218 /*************************************************************************
1219 PART 3: I/O and Network Support
1220 ************************************************************************/
1222 /* Note that the JVM IO functions are expected to return JVM_IO_ERR
1223 * when there is any kind of error. The caller can then use the
1224 * platform specific support (e.g., errno) to get the detailed
1225 * error info. The JVM_GetLastErrorString procedure may also be used
1226 * to obtain a descriptive error string.
1227 */
1228 #define JVM_IO_ERR (-1)
1230 /* For interruptible IO. Returning JVM_IO_INTR indicates that an IO
1231 * operation has been disrupted by Thread.interrupt. There are a
1232 * number of technical difficulties related to interruptible IO that
1233 * need to be solved. For example, most existing programs do not handle
1234 * InterruptedIOExceptions specially, they simply treat those as any
1235 * IOExceptions, which typically indicate fatal errors.
1236 *
1237 * There are also two modes of operation for interruptible IO. In the
1238 * resumption mode, an interrupted IO operation is guaranteed not to
1239 * have any side-effects, and can be restarted. In the termination mode,
1240 * an interrupted IO operation corrupts the underlying IO stream, so
1241 * that the only reasonable operation on an interrupted stream is to
1242 * close that stream. The resumption mode seems to be impossible to
1243 * implement on Win32 and Solaris. Implementing the termination mode is
1244 * easier, but it's not clear that's the right semantics.
1245 *
1246 * Interruptible IO is not supported on Win32.It can be enabled/disabled
1247 * using a compile-time flag on Solaris. Third-party JVM ports do not
1248 * need to implement interruptible IO.
1249 */
1250 #define JVM_IO_INTR (-2)
1252 /* Write a string into the given buffer, in the platform's local encoding,
1253 * that describes the most recent system-level error to occur in this thread.
1254 * Return the length of the string or zero if no error occurred.
1255 */
1256 JNIEXPORT jint JNICALL
1257 JVM_GetLastErrorString(char *buf, int len);
1259 /*
1260 * Convert a pathname into native format. This function does syntactic
1261 * cleanup, such as removing redundant separator characters. It modifies
1262 * the given pathname string in place.
1263 */
1264 JNIEXPORT char * JNICALL
1265 JVM_NativePath(char *);
1267 /*
1268 * JVM I/O error codes
1269 */
1270 #define JVM_EEXIST -100
1272 /*
1273 * Open a file descriptor. This function returns a negative error code
1274 * on error, and a non-negative integer that is the file descriptor on
1275 * success.
1276 */
1277 JNIEXPORT jint JNICALL
1278 JVM_Open(const char *fname, jint flags, jint mode);
1280 /*
1281 * Close a file descriptor. This function returns -1 on error, and 0
1282 * on success.
1283 *
1284 * fd the file descriptor to close.
1285 */
1286 JNIEXPORT jint JNICALL
1287 JVM_Close(jint fd);
1289 /*
1290 * Read data from a file decriptor into a char array.
1291 *
1292 * fd the file descriptor to read from.
1293 * buf the buffer where to put the read data.
1294 * nbytes the number of bytes to read.
1295 *
1296 * This function returns -1 on error, and 0 on success.
1297 */
1298 JNIEXPORT jint JNICALL
1299 JVM_Read(jint fd, char *buf, jint nbytes);
1301 /*
1302 * Write data from a char array to a file decriptor.
1303 *
1304 * fd the file descriptor to read from.
1305 * buf the buffer from which to fetch the data.
1306 * nbytes the number of bytes to write.
1307 *
1308 * This function returns -1 on error, and 0 on success.
1309 */
1310 JNIEXPORT jint JNICALL
1311 JVM_Write(jint fd, char *buf, jint nbytes);
1313 /*
1314 * Returns the number of bytes available for reading from a given file
1315 * descriptor
1316 */
1317 JNIEXPORT jint JNICALL
1318 JVM_Available(jint fd, jlong *pbytes);
1320 /*
1321 * Move the file descriptor pointer from whence by offset.
1322 *
1323 * fd the file descriptor to move.
1324 * offset the number of bytes to move it by.
1325 * whence the start from where to move it.
1326 *
1327 * This function returns the resulting pointer location.
1328 */
1329 JNIEXPORT jlong JNICALL
1330 JVM_Lseek(jint fd, jlong offset, jint whence);
1332 /*
1333 * Set the length of the file associated with the given descriptor to the given
1334 * length. If the new length is longer than the current length then the file
1335 * is extended; the contents of the extended portion are not defined. The
1336 * value of the file pointer is undefined after this procedure returns.
1337 */
1338 JNIEXPORT jint JNICALL
1339 JVM_SetLength(jint fd, jlong length);
1341 /*
1342 * Synchronize the file descriptor's in memory state with that of the
1343 * physical device. Return of -1 is an error, 0 is OK.
1344 */
1345 JNIEXPORT jint JNICALL
1346 JVM_Sync(jint fd);
1348 /*
1349 * Networking library support
1350 */
1352 JNIEXPORT jint JNICALL
1353 JVM_InitializeSocketLibrary(void);
1355 struct sockaddr;
1357 JNIEXPORT jint JNICALL
1358 JVM_Socket(jint domain, jint type, jint protocol);
1360 JNIEXPORT jint JNICALL
1361 JVM_SocketClose(jint fd);
1363 JNIEXPORT jint JNICALL
1364 JVM_SocketShutdown(jint fd, jint howto);
1366 JNIEXPORT jint JNICALL
1367 JVM_Recv(jint fd, char *buf, jint nBytes, jint flags);
1369 JNIEXPORT jint JNICALL
1370 JVM_Send(jint fd, char *buf, jint nBytes, jint flags);
1372 JNIEXPORT jint JNICALL
1373 JVM_Timeout(int fd, long timeout);
1375 JNIEXPORT jint JNICALL
1376 JVM_Listen(jint fd, jint count);
1378 JNIEXPORT jint JNICALL
1379 JVM_Connect(jint fd, struct sockaddr *him, jint len);
1381 JNIEXPORT jint JNICALL
1382 JVM_Bind(jint fd, struct sockaddr *him, jint len);
1384 JNIEXPORT jint JNICALL
1385 JVM_Accept(jint fd, struct sockaddr *him, jint *len);
1387 JNIEXPORT jint JNICALL
1388 JVM_RecvFrom(jint fd, char *buf, int nBytes,
1389 int flags, struct sockaddr *from, int *fromlen);
1391 JNIEXPORT jint JNICALL
1392 JVM_SendTo(jint fd, char *buf, int len,
1393 int flags, struct sockaddr *to, int tolen);
1395 JNIEXPORT jint JNICALL
1396 JVM_SocketAvailable(jint fd, jint *result);
1399 JNIEXPORT jint JNICALL
1400 JVM_GetSockName(jint fd, struct sockaddr *him, int *len);
1402 JNIEXPORT jint JNICALL
1403 JVM_GetSockOpt(jint fd, int level, int optname, char *optval, int *optlen);
1405 JNIEXPORT jint JNICALL
1406 JVM_SetSockOpt(jint fd, int level, int optname, const char *optval, int optlen);
1408 /*
1409 * These routines are only reentrant on Windows
1410 */
1412 #ifdef _WINDOWS
1414 JNIEXPORT struct protoent * JNICALL
1415 JVM_GetProtoByName(char* name);
1417 JNIEXPORT struct hostent* JNICALL
1418 JVM_GetHostByAddr(const char* name, int len, int type);
1420 JNIEXPORT struct hostent* JNICALL
1421 JVM_GetHostByName(char* name);
1423 #endif /* _WINDOWS */
1425 JNIEXPORT int JNICALL
1426 JVM_GetHostName(char* name, int namelen);
1428 /*
1429 * The standard printing functions supported by the Java VM. (Should they
1430 * be renamed to JVM_* in the future?
1431 */
1433 /*
1434 * BE CAREFUL! The following functions do not implement the
1435 * full feature set of standard C printf formats.
1436 */
1437 int
1438 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1440 int
1441 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1443 int
1444 jio_fprintf(FILE *, const char *fmt, ...);
1446 int
1447 jio_vfprintf(FILE *, const char *fmt, va_list args);
1450 JNIEXPORT void * JNICALL
1451 JVM_RawMonitorCreate(void);
1453 JNIEXPORT void JNICALL
1454 JVM_RawMonitorDestroy(void *mon);
1456 JNIEXPORT jint JNICALL
1457 JVM_RawMonitorEnter(void *mon);
1459 JNIEXPORT void JNICALL
1460 JVM_RawMonitorExit(void *mon);
1463 #ifdef SUPPORT_OLD_REFLECTION
1465 /*
1466 * Support for old native code-based (pre-JDK 1.4) reflection implementation.
1467 * Disabled by default in the product build.
1468 *
1469 * See reflection.hpp for information on SUPPORT_OLD_REFLECTION
1470 */
1472 /*
1473 * reflecting fields and methods.
1474 * which: 0 --- MEMBER_PUBLIC
1475 * 1 --- MEMBER_DECLARED
1476 * NOTE: absent in product build by default
1477 */
1479 JNIEXPORT jobjectArray JNICALL
1480 JVM_GetClassFields(JNIEnv *env, jclass cls, jint which);
1482 JNIEXPORT jobjectArray JNICALL
1483 JVM_GetClassMethods(JNIEnv *env, jclass cls, jint which);
1485 JNIEXPORT jobjectArray JNICALL
1486 JVM_GetClassConstructors(JNIEnv *env, jclass cls, jint which);
1488 JNIEXPORT jobject JNICALL
1489 JVM_GetClassField(JNIEnv *env, jclass cls, jstring name, jint which);
1491 JNIEXPORT jobject JNICALL
1492 JVM_GetClassMethod(JNIEnv *env, jclass cls, jstring name, jobjectArray types,
1493 jint which);
1494 JNIEXPORT jobject JNICALL
1495 JVM_GetClassConstructor(JNIEnv *env, jclass cls, jobjectArray types,
1496 jint which);
1498 /*
1499 * Implements Class.newInstance
1500 */
1501 JNIEXPORT jobject JNICALL
1502 JVM_NewInstance(JNIEnv *env, jclass cls);
1504 /*
1505 * java.lang.reflect.Field
1506 */
1507 JNIEXPORT jobject JNICALL
1508 JVM_GetField(JNIEnv *env, jobject field, jobject obj);
1510 JNIEXPORT jvalue JNICALL
1511 JVM_GetPrimitiveField(JNIEnv *env, jobject field, jobject obj,
1512 unsigned char wCode);
1514 JNIEXPORT void JNICALL
1515 JVM_SetField(JNIEnv *env, jobject field, jobject obj, jobject val);
1517 JNIEXPORT void JNICALL
1518 JVM_SetPrimitiveField(JNIEnv *env, jobject field, jobject obj, jvalue v,
1519 unsigned char vCode);
1521 /*
1522 * java.lang.reflect.Method
1523 */
1524 JNIEXPORT jobject JNICALL
1525 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
1527 /*
1528 * java.lang.reflect.Constructor
1529 */
1530 JNIEXPORT jobject JNICALL
1531 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
1533 #endif /* SUPPORT_OLD_REFLECTION */
1535 /*
1536 * java.lang.management support
1537 */
1538 JNIEXPORT void* JNICALL
1539 JVM_GetManagement(jint version);
1541 /*
1542 * com.sun.tools.attach.VirtualMachine support
1543 *
1544 * Initialize the agent properties with the properties maintained in the VM.
1545 */
1546 JNIEXPORT jobject JNICALL
1547 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1549 /* Generics reflection support.
1550 *
1551 * Returns information about the given class's EnclosingMethod
1552 * attribute, if present, or null if the class had no enclosing
1553 * method.
1554 *
1555 * If non-null, the returned array contains three elements. Element 0
1556 * is the java.lang.Class of which the enclosing method is a member,
1557 * and elements 1 and 2 are the java.lang.Strings for the enclosing
1558 * method's name and descriptor, respectively.
1559 */
1560 JNIEXPORT jobjectArray JNICALL
1561 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1563 /*
1564 * Java thread state support
1565 */
1566 enum {
1567 JAVA_THREAD_STATE_NEW = 0,
1568 JAVA_THREAD_STATE_RUNNABLE = 1,
1569 JAVA_THREAD_STATE_BLOCKED = 2,
1570 JAVA_THREAD_STATE_WAITING = 3,
1571 JAVA_THREAD_STATE_TIMED_WAITING = 4,
1572 JAVA_THREAD_STATE_TERMINATED = 5,
1573 JAVA_THREAD_STATE_COUNT = 6
1574 };
1576 /*
1577 * Returns an array of the threadStatus values representing the
1578 * given Java thread state. Returns NULL if the VM version is
1579 * incompatible with the JDK or doesn't support the given
1580 * Java thread state.
1581 */
1582 JNIEXPORT jintArray JNICALL
1583 JVM_GetThreadStateValues(JNIEnv* env, jint javaThreadState);
1585 /*
1586 * Returns an array of the substate names representing the
1587 * given Java thread state. Returns NULL if the VM version is
1588 * incompatible with the JDK or the VM doesn't support
1589 * the given Java thread state.
1590 * values must be the jintArray returned from JVM_GetThreadStateValues
1591 * and javaThreadState.
1592 */
1593 JNIEXPORT jobjectArray JNICALL
1594 JVM_GetThreadStateNames(JNIEnv* env, jint javaThreadState, jintArray values);
1596 /* =========================================================================
1597 * The following defines a private JVM interface that the JDK can query
1598 * for the JVM version and capabilities. sun.misc.Version defines
1599 * the methods for getting the VM version and its capabilities.
1600 *
1601 * When a new bit is added, the following should be updated to provide
1602 * access to the new capability:
1603 * HS: JVM_GetVersionInfo and Abstract_VM_Version class
1604 * SDK: Version class
1605 *
1606 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for
1607 * JVM to query for the JDK version and capabilities.
1608 *
1609 * When a new bit is added, the following should be updated to provide
1610 * access to the new capability:
1611 * HS: JDK_Version class
1612 * SDK: JDK_GetVersionInfo0
1613 *
1614 * ==========================================================================
1615 */
1616 typedef struct {
1617 /* HotSpot Express VM version string:
1618 * <major>.<minor>-bxx[-<identifier>][-<debug_flavor>]
1619 */
1620 unsigned int jvm_version; /* Consists of major.minor.0.build */
1621 unsigned int update_version : 8; /* 0 in HotSpot Express VM */
1622 unsigned int special_update_version : 8; /* 0 in HotSpot Express VM */
1623 unsigned int reserved1 : 16;
1624 unsigned int reserved2;
1626 /* The following bits represents JVM supports that JDK has dependency on.
1627 * JDK can use these bits to determine which JVM version
1628 * and support it has to maintain runtime compatibility.
1629 *
1630 * When a new bit is added in a minor or update release, make sure
1631 * the new bit is also added in the main/baseline.
1632 */
1633 unsigned int is_attachable : 1;
1634 unsigned int is_kernel_jvm : 1;
1635 unsigned int : 30;
1636 unsigned int : 32;
1637 unsigned int : 32;
1638 } jvm_version_info;
1640 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1641 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1642 // Micro version is 0 in HotSpot Express VM (set in jvm.cpp).
1643 #define JVM_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1644 /* Build number is available in all HotSpot Express VM builds.
1645 * It is defined in make/hotspot_version file.
1646 */
1647 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF))
1649 JNIEXPORT void JNICALL
1650 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size);
1652 typedef struct {
1653 // Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx
1654 unsigned int jdk_version; /* Consists of major, minor, micro (n.n.n) */
1655 /* and build number (xx) */
1656 unsigned int update_version : 8; /* Update release version (uu) */
1657 unsigned int special_update_version : 8; /* Special update release version (c)*/
1658 unsigned int reserved1 : 16;
1659 unsigned int reserved2;
1661 /* The following bits represents new JDK supports that VM has dependency on.
1662 * VM implementation can use these bits to determine which JDK version
1663 * and support it has to maintain runtime compatibility.
1664 *
1665 * When a new bit is added in a minor or update release, make sure
1666 * the new bit is also added in the main/baseline.
1667 */
1668 unsigned int thread_park_blocker : 1;
1669 unsigned int : 31;
1670 unsigned int : 32;
1671 unsigned int : 32;
1672 } jdk_version_info;
1674 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1675 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1676 #define JDK_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1678 /* Build number is available only for RE build (i.e. JDK_BUILD_NUMBER is set to bNN)
1679 * It will be zero for internal builds.
1680 */
1681 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF))
1683 /*
1684 * This is the function JDK_GetVersionInfo0 defined in libjava.so
1685 * that is dynamically looked up by JVM.
1686 */
1687 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size);
1689 /*
1690 * This structure is used by the launcher to get the default thread
1691 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1692 * version of 1.1. As it is not supported otherwise, it has been removed
1693 * from jni.h
1694 */
1695 typedef struct JDK1_1InitArgs {
1696 jint version;
1698 char **properties;
1699 jint checkSource;
1700 jint nativeStackSize;
1701 jint javaStackSize;
1702 jint minHeapSize;
1703 jint maxHeapSize;
1704 jint verifyMode;
1705 char *classpath;
1707 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1708 void (JNICALL *exit)(jint code);
1709 void (JNICALL *abort)(void);
1711 jint enableClassGC;
1712 jint enableVerboseGC;
1713 jint disableAsyncGC;
1714 jint verbose;
1715 jboolean debugging;
1716 jint debugPort;
1717 } JDK1_1InitArgs;
1719 #ifdef __cplusplus
1720 } /* extern "C" */
1721 #endif /* __cplusplus */
1723 #endif /* !_JAVASOFT_JVM_H_ */
1725 #endif // SHARE_VM_PRIMS_JVM_H
