Mercurial > jdk8-mips64-public > hotspot / file revision
src/share/vm/prims/jvm.h@35431a769282
src/share/vm/prims/jvm.h
Thu, 20 Dec 2012 10:22:19 +0100
- author
- stefank
- date
- Thu, 20 Dec 2012 10:22:19 +0100
- changeset 4393
- 35431a769282
- parent 4037
- da91efe96a93
- child 4398
- ade95d680b42
- permissions
- -rw-r--r--
8004823: Add VM support for type annotation reflection
Reviewed-by: dholmes, coleenp
Contributed-by: joel.franck@oracle.com
1 /*
2 * Copyright (c) 1997, 2012, 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 #ifdef TARGET_OS_FAMILY_linux
30 # include "jvm_linux.h"
31 #endif
32 #ifdef TARGET_OS_FAMILY_solaris
33 # include "jvm_solaris.h"
34 #endif
35 #ifdef TARGET_OS_FAMILY_windows
36 # include "jvm_windows.h"
37 #endif
38 #ifdef TARGET_OS_FAMILY_bsd
39 # include "jvm_bsd.h"
40 #endif
42 #ifndef _JAVASOFT_JVM_H_
43 #define _JAVASOFT_JVM_H_
45 // HotSpot integration note:
46 //
47 // This file and jvm.h used with the JDK are identical,
48 // except for the three includes removed below
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 JNIEXPORT void JNICALL
295 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name);
297 /* getStackTrace() and getAllStackTraces() method */
298 JNIEXPORT jobjectArray JNICALL
299 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
301 /*
302 * java.lang.SecurityManager
303 */
304 JNIEXPORT jclass JNICALL
305 JVM_CurrentLoadedClass(JNIEnv *env);
307 JNIEXPORT jobject JNICALL
308 JVM_CurrentClassLoader(JNIEnv *env);
310 JNIEXPORT jobjectArray JNICALL
311 JVM_GetClassContext(JNIEnv *env);
313 JNIEXPORT jint JNICALL
314 JVM_ClassDepth(JNIEnv *env, jstring name);
316 JNIEXPORT jint JNICALL
317 JVM_ClassLoaderDepth(JNIEnv *env);
319 /*
320 * java.lang.Package
321 */
322 JNIEXPORT jstring JNICALL
323 JVM_GetSystemPackage(JNIEnv *env, jstring name);
325 JNIEXPORT jobjectArray JNICALL
326 JVM_GetSystemPackages(JNIEnv *env);
328 /*
329 * java.io.ObjectInputStream
330 */
331 JNIEXPORT jobject JNICALL
332 JVM_AllocateNewObject(JNIEnv *env, jobject obj, jclass currClass,
333 jclass initClass);
335 JNIEXPORT jobject JNICALL
336 JVM_AllocateNewArray(JNIEnv *env, jobject obj, jclass currClass,
337 jint length);
339 JNIEXPORT jobject JNICALL
340 JVM_LatestUserDefinedLoader(JNIEnv *env);
342 /*
343 * This function has been deprecated and should not be considered
344 * part of the specified JVM interface.
345 */
346 JNIEXPORT jclass JNICALL
347 JVM_LoadClass0(JNIEnv *env, jobject obj, jclass currClass,
348 jstring currClassName);
350 /*
351 * java.lang.reflect.Array
352 */
353 JNIEXPORT jint JNICALL
354 JVM_GetArrayLength(JNIEnv *env, jobject arr);
356 JNIEXPORT jobject JNICALL
357 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
359 JNIEXPORT jvalue JNICALL
360 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
362 JNIEXPORT void JNICALL
363 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
365 JNIEXPORT void JNICALL
366 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
367 unsigned char vCode);
369 JNIEXPORT jobject JNICALL
370 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
372 JNIEXPORT jobject JNICALL
373 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
375 /*
376 * java.lang.Class and java.lang.ClassLoader
377 */
378 /*
379 * Returns the class in which the code invoking the native method
380 * belongs.
381 *
382 * Note that in JDK 1.1, native methods did not create a frame.
383 * In 1.2, they do. Therefore native methods like Class.forName
384 * can no longer look at the current frame for the caller class.
385 */
386 JNIEXPORT jclass JNICALL
387 JVM_GetCallerClass(JNIEnv *env, int n);
389 /*
390 * Find primitive classes
391 * utf: class name
392 */
393 JNIEXPORT jclass JNICALL
394 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
396 /*
397 * Link the class
398 */
399 JNIEXPORT void JNICALL
400 JVM_ResolveClass(JNIEnv *env, jclass cls);
402 /*
403 * Find a class from a given class loader. Throw ClassNotFoundException
404 * or NoClassDefFoundError depending on the value of the last
405 * argument.
406 */
407 JNIEXPORT jclass JNICALL
408 JVM_FindClassFromClassLoader(JNIEnv *env, const char *name, jboolean init,
409 jobject loader, jboolean throwError);
411 /*
412 * Find a class from a boot class loader. Returns NULL if class not found.
413 */
414 JNIEXPORT jclass JNICALL
415 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
417 /*
418 * Find a class from a given class.
419 */
420 JNIEXPORT jclass JNICALL
421 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
422 jclass from);
424 /* Find a loaded class cached by the VM */
425 JNIEXPORT jclass JNICALL
426 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
428 /* Define a class */
429 JNIEXPORT jclass JNICALL
430 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
431 jsize len, jobject pd);
433 /* Define a class with a source (added in JDK1.5) */
434 JNIEXPORT jclass JNICALL
435 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
436 const jbyte *buf, jsize len, jobject pd,
437 const char *source);
439 /* Define a class with a source with conditional verification (added HSX 14)
440 * -Xverify:all will verify anyway, -Xverify:none will not verify,
441 * -Xverify:remote (default) will obey this conditional
442 * i.e. true = should_verify_class
443 */
444 JNIEXPORT jclass JNICALL
445 JVM_DefineClassWithSourceCond(JNIEnv *env, const char *name,
446 jobject loader, const jbyte *buf,
447 jsize len, jobject pd, const char *source,
448 jboolean verify);
450 /*
451 * Reflection support functions
452 */
454 JNIEXPORT jstring JNICALL
455 JVM_GetClassName(JNIEnv *env, jclass cls);
457 JNIEXPORT jobjectArray JNICALL
458 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
460 JNIEXPORT jobject JNICALL
461 JVM_GetClassLoader(JNIEnv *env, jclass cls);
463 JNIEXPORT jboolean JNICALL
464 JVM_IsInterface(JNIEnv *env, jclass cls);
466 JNIEXPORT jobjectArray JNICALL
467 JVM_GetClassSigners(JNIEnv *env, jclass cls);
469 JNIEXPORT void JNICALL
470 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
472 JNIEXPORT jobject JNICALL
473 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
475 JNIEXPORT void JNICALL
476 JVM_SetProtectionDomain(JNIEnv *env, jclass cls, jobject protection_domain);
478 JNIEXPORT jboolean JNICALL
479 JVM_IsArrayClass(JNIEnv *env, jclass cls);
481 JNIEXPORT jboolean JNICALL
482 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
484 JNIEXPORT jclass JNICALL
485 JVM_GetComponentType(JNIEnv *env, jclass cls);
487 JNIEXPORT jint JNICALL
488 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
490 JNIEXPORT jobjectArray JNICALL
491 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
493 JNIEXPORT jclass JNICALL
494 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
496 /* Generics support (JDK 1.5) */
497 JNIEXPORT jstring JNICALL
498 JVM_GetClassSignature(JNIEnv *env, jclass cls);
500 /* Annotations support (JDK 1.5) */
501 JNIEXPORT jbyteArray JNICALL
502 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
504 /* Annotations support (JDK 1.6) */
506 // field is a handle to a java.lang.reflect.Field object
507 JNIEXPORT jbyteArray JNICALL
508 JVM_GetFieldAnnotations(JNIEnv *env, jobject field);
510 // method is a handle to a java.lang.reflect.Method object
511 JNIEXPORT jbyteArray JNICALL
512 JVM_GetMethodAnnotations(JNIEnv *env, jobject method);
514 // method is a handle to a java.lang.reflect.Method object
515 JNIEXPORT jbyteArray JNICALL
516 JVM_GetMethodDefaultAnnotationValue(JNIEnv *env, jobject method);
518 // method is a handle to a java.lang.reflect.Method object
519 JNIEXPORT jbyteArray JNICALL
520 JVM_GetMethodParameterAnnotations(JNIEnv *env, jobject method);
522 /* Type use annotations support (JDK 1.8) */
524 JNIEXPORT jbyteArray JNICALL
525 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls);
527 /*
528 * New (JDK 1.4) reflection implementation
529 */
531 JNIEXPORT jobjectArray JNICALL
532 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
534 JNIEXPORT jobjectArray JNICALL
535 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
537 JNIEXPORT jobjectArray JNICALL
538 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
540 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
541 This returns the access flags for the class as specified in the
542 class file rather than searching the InnerClasses attribute (if
543 present) to find the source-level access flags. Only the values of
544 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
545 valid. */
546 JNIEXPORT jint JNICALL
547 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
549 /*
550 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
551 */
553 JNIEXPORT jobject JNICALL
554 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
556 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
557 (JNIEnv *env, jobject obj, jobject unused);
559 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
560 (JNIEnv *env, jobject obj, jobject unused, jint index);
562 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
563 (JNIEnv *env, jobject obj, jobject unused, jint index);
565 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
566 (JNIEnv *env, jobject obj, jobject unused, jint index);
568 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
569 (JNIEnv *env, jobject obj, jobject unused, jint index);
571 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
572 (JNIEnv *env, jobject obj, jobject unused, jint index);
574 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
575 (JNIEnv *env, jobject obj, jobject unused, jint index);
577 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
578 (JNIEnv *env, jobject obj, jobject unused, jint index);
580 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
581 (JNIEnv *env, jobject obj, jobject unused, jint index);
583 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
584 (JNIEnv *env, jobject obj, jobject unused, jint index);
586 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
587 (JNIEnv *env, jobject obj, jobject unused, jint index);
589 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
590 (JNIEnv *env, jobject obj, jobject unused, jint index);
592 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
593 (JNIEnv *env, jobject obj, jobject unused, jint index);
595 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
596 (JNIEnv *env, jobject obj, jobject unused, jint index);
598 /*
599 * java.security.*
600 */
602 JNIEXPORT jobject JNICALL
603 JVM_DoPrivileged(JNIEnv *env, jclass cls,
604 jobject action, jobject context, jboolean wrapException);
606 JNIEXPORT jobject JNICALL
607 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
609 JNIEXPORT jobject JNICALL
610 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
612 /*
613 * Signal support, used to implement the shutdown sequence. Every VM must
614 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
615 * (^C) and the latter for external termination (kill, system shutdown, etc.).
616 * Other platform-dependent signal values may also be supported.
617 */
619 JNIEXPORT void * JNICALL
620 JVM_RegisterSignal(jint sig, void *handler);
622 JNIEXPORT jboolean JNICALL
623 JVM_RaiseSignal(jint sig);
625 JNIEXPORT jint JNICALL
626 JVM_FindSignal(const char *name);
628 /*
629 * Retrieve the assertion directives for the specified class.
630 */
631 JNIEXPORT jboolean JNICALL
632 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
634 /*
635 * Retrieve the assertion directives from the VM.
636 */
637 JNIEXPORT jobject JNICALL
638 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
640 /*
641 * java.util.concurrent.atomic.AtomicLong
642 */
643 JNIEXPORT jboolean JNICALL
644 JVM_SupportsCX8(void);
646 JNIEXPORT jboolean JNICALL
647 JVM_CX8Field(JNIEnv *env, jobject obj, jfieldID fldID, jlong oldVal, jlong newVal);
649 /*
650 * com.sun.dtrace.jsdt support
651 */
653 #define JVM_TRACING_DTRACE_VERSION 1
655 /*
656 * Structure to pass one probe description to JVM.
657 *
658 * The VM will overwrite the definition of the referenced method with
659 * code that will fire the probe.
660 */
661 typedef struct {
662 jmethodID method;
663 jstring function;
664 jstring name;
665 void* reserved[4]; // for future use
666 } JVM_DTraceProbe;
668 /**
669 * Encapsulates the stability ratings for a DTrace provider field
670 */
671 typedef struct {
672 jint nameStability;
673 jint dataStability;
674 jint dependencyClass;
675 } JVM_DTraceInterfaceAttributes;
677 /*
678 * Structure to pass one provider description to JVM
679 */
680 typedef struct {
681 jstring name;
682 JVM_DTraceProbe* probes;
683 jint probe_count;
684 JVM_DTraceInterfaceAttributes providerAttributes;
685 JVM_DTraceInterfaceAttributes moduleAttributes;
686 JVM_DTraceInterfaceAttributes functionAttributes;
687 JVM_DTraceInterfaceAttributes nameAttributes;
688 JVM_DTraceInterfaceAttributes argsAttributes;
689 void* reserved[4]; // for future use
690 } JVM_DTraceProvider;
692 /*
693 * Get the version number the JVM was built with
694 */
695 JNIEXPORT jint JNICALL
696 JVM_DTraceGetVersion(JNIEnv* env);
698 /*
699 * Register new probe with given signature, return global handle
700 *
701 * The version passed in is the version that the library code was
702 * built with.
703 */
704 JNIEXPORT jlong JNICALL
705 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name,
706 jint providers_count, JVM_DTraceProvider* providers);
708 /*
709 * Check JSDT probe
710 */
711 JNIEXPORT jboolean JNICALL
712 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method);
714 /*
715 * Destroy custom DOF
716 */
717 JNIEXPORT void JNICALL
718 JVM_DTraceDispose(JNIEnv* env, jlong handle);
720 /*
721 * Check to see if DTrace is supported by OS
722 */
723 JNIEXPORT jboolean JNICALL
724 JVM_DTraceIsSupported(JNIEnv* env);
726 /*************************************************************************
727 PART 2: Support for the Verifier and Class File Format Checker
728 ************************************************************************/
729 /*
730 * Return the class name in UTF format. The result is valid
731 * until JVM_ReleaseUTf is called.
732 *
733 * The caller must treat the string as a constant and not modify it
734 * in any way.
735 */
736 JNIEXPORT const char * JNICALL
737 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
739 /*
740 * Returns the constant pool types in the buffer provided by "types."
741 */
742 JNIEXPORT void JNICALL
743 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
745 /*
746 * Returns the number of Constant Pool entries.
747 */
748 JNIEXPORT jint JNICALL
749 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
751 /*
752 * Returns the number of *declared* fields or methods.
753 */
754 JNIEXPORT jint JNICALL
755 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
757 JNIEXPORT jint JNICALL
758 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
760 /*
761 * Returns the CP indexes of exceptions raised by a given method.
762 * Places the result in the given buffer.
763 *
764 * The method is identified by method_index.
765 */
766 JNIEXPORT void JNICALL
767 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
768 unsigned short *exceptions);
769 /*
770 * Returns the number of exceptions raised by a given method.
771 * The method is identified by method_index.
772 */
773 JNIEXPORT jint JNICALL
774 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
776 /*
777 * Returns the byte code sequence of a given method.
778 * Places the result in the given buffer.
779 *
780 * The method is identified by method_index.
781 */
782 JNIEXPORT void JNICALL
783 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
784 unsigned char *code);
786 /*
787 * Returns the length of the byte code sequence of a given method.
788 * The method is identified by method_index.
789 */
790 JNIEXPORT jint JNICALL
791 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
793 /*
794 * A structure used to a capture exception table entry in a Java method.
795 */
796 typedef struct {
797 jint start_pc;
798 jint end_pc;
799 jint handler_pc;
800 jint catchType;
801 } JVM_ExceptionTableEntryType;
803 /*
804 * Returns the exception table entry at entry_index of a given method.
805 * Places the result in the given buffer.
806 *
807 * The method is identified by method_index.
808 */
809 JNIEXPORT void JNICALL
810 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
811 jint entry_index,
812 JVM_ExceptionTableEntryType *entry);
814 /*
815 * Returns the length of the exception table of a given method.
816 * The method is identified by method_index.
817 */
818 JNIEXPORT jint JNICALL
819 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
821 /*
822 * Returns the modifiers of a given field.
823 * The field is identified by field_index.
824 */
825 JNIEXPORT jint JNICALL
826 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
828 /*
829 * Returns the modifiers of a given method.
830 * The method is identified by method_index.
831 */
832 JNIEXPORT jint JNICALL
833 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
835 /*
836 * Returns the number of local variables of a given method.
837 * The method is identified by method_index.
838 */
839 JNIEXPORT jint JNICALL
840 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
842 /*
843 * Returns the number of arguments (including this pointer) of a given method.
844 * The method is identified by method_index.
845 */
846 JNIEXPORT jint JNICALL
847 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
849 /*
850 * Returns the maximum amount of stack (in words) used by a given method.
851 * The method is identified by method_index.
852 */
853 JNIEXPORT jint JNICALL
854 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
856 /*
857 * Is a given method a constructor.
858 * The method is identified by method_index.
859 */
860 JNIEXPORT jboolean JNICALL
861 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
863 /*
864 * Returns the name of a given method in UTF format.
865 * The result remains valid until JVM_ReleaseUTF is called.
866 *
867 * The caller must treat the string as a constant and not modify it
868 * in any way.
869 */
870 JNIEXPORT const char * JNICALL
871 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
873 /*
874 * Returns the signature of a given method in UTF format.
875 * The result remains valid until JVM_ReleaseUTF is called.
876 *
877 * The caller must treat the string as a constant and not modify it
878 * in any way.
879 */
880 JNIEXPORT const char * JNICALL
881 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
883 /*
884 * Returns the name of the field refered to at a given constant pool
885 * index.
886 *
887 * The result is in UTF format and remains valid until JVM_ReleaseUTF
888 * is called.
889 *
890 * The caller must treat the string as a constant and not modify it
891 * in any way.
892 */
893 JNIEXPORT const char * JNICALL
894 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
896 /*
897 * Returns the name of the method refered to at a given constant pool
898 * index.
899 *
900 * The result is in UTF format and remains valid until JVM_ReleaseUTF
901 * is called.
902 *
903 * The caller must treat the string as a constant and not modify it
904 * in any way.
905 */
906 JNIEXPORT const char * JNICALL
907 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
909 /*
910 * Returns the signature of the method refered to at a given constant pool
911 * index.
912 *
913 * The result is in UTF format and remains valid until JVM_ReleaseUTF
914 * is called.
915 *
916 * The caller must treat the string as a constant and not modify it
917 * in any way.
918 */
919 JNIEXPORT const char * JNICALL
920 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
922 /*
923 * Returns the signature of the field refered to at a given constant pool
924 * index.
925 *
926 * The result is in UTF format and remains valid until JVM_ReleaseUTF
927 * is called.
928 *
929 * The caller must treat the string as a constant and not modify it
930 * in any way.
931 */
932 JNIEXPORT const char * JNICALL
933 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
935 /*
936 * Returns the class name refered to at a given constant pool index.
937 *
938 * The result is in UTF format and remains valid until JVM_ReleaseUTF
939 * is called.
940 *
941 * The caller must treat the string as a constant and not modify it
942 * in any way.
943 */
944 JNIEXPORT const char * JNICALL
945 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
947 /*
948 * Returns the class name refered to at a given constant pool index.
949 *
950 * The constant pool entry must refer to a CONSTANT_Fieldref.
951 *
952 * The result is in UTF format and remains valid until JVM_ReleaseUTF
953 * is called.
954 *
955 * The caller must treat the string as a constant and not modify it
956 * in any way.
957 */
958 JNIEXPORT const char * JNICALL
959 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
961 /*
962 * Returns the class name refered to at a given constant pool index.
963 *
964 * The constant pool entry must refer to CONSTANT_Methodref or
965 * CONSTANT_InterfaceMethodref.
966 *
967 * The result is in UTF format and remains valid until JVM_ReleaseUTF
968 * is called.
969 *
970 * The caller must treat the string as a constant and not modify it
971 * in any way.
972 */
973 JNIEXPORT const char * JNICALL
974 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
976 /*
977 * Returns the modifiers of a field in calledClass. The field is
978 * referred to in class cb at constant pool entry index.
979 *
980 * The caller must treat the string as a constant and not modify it
981 * in any way.
982 *
983 * Returns -1 if the field does not exist in calledClass.
984 */
985 JNIEXPORT jint JNICALL
986 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
988 /*
989 * Returns the modifiers of a method in calledClass. The method is
990 * referred to in class cb at constant pool entry index.
991 *
992 * Returns -1 if the method does not exist in calledClass.
993 */
994 JNIEXPORT jint JNICALL
995 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
997 /*
998 * Releases the UTF string obtained from the VM.
999 */
1000 JNIEXPORT void JNICALL
1001 JVM_ReleaseUTF(const char *utf);
1003 /*
1004 * Compare if two classes are in the same package.
1005 */
1006 JNIEXPORT jboolean JNICALL
1007 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
1009 /* Constants in class files */
1011 #define JVM_ACC_PUBLIC 0x0001 /* visible to everyone */
1012 #define JVM_ACC_PRIVATE 0x0002 /* visible only to the defining class */
1013 #define JVM_ACC_PROTECTED 0x0004 /* visible to subclasses */
1014 #define JVM_ACC_STATIC 0x0008 /* instance variable is static */
1015 #define JVM_ACC_FINAL 0x0010 /* no further subclassing, overriding */
1016 #define JVM_ACC_SYNCHRONIZED 0x0020 /* wrap method call in monitor lock */
1017 #define JVM_ACC_SUPER 0x0020 /* funky handling of invokespecial */
1018 #define JVM_ACC_VOLATILE 0x0040 /* can not cache in registers */
1019 #define JVM_ACC_BRIDGE 0x0040 /* bridge method generated by compiler */
1020 #define JVM_ACC_TRANSIENT 0x0080 /* not persistent */
1021 #define JVM_ACC_VARARGS 0x0080 /* method declared with variable number of args */
1022 #define JVM_ACC_NATIVE 0x0100 /* implemented in C */
1023 #define JVM_ACC_INTERFACE 0x0200 /* class is an interface */
1024 #define JVM_ACC_ABSTRACT 0x0400 /* no definition provided */
1025 #define JVM_ACC_STRICT 0x0800 /* strict floating point */
1026 #define JVM_ACC_SYNTHETIC 0x1000 /* compiler-generated class, method or field */
1027 #define JVM_ACC_ANNOTATION 0x2000 /* annotation type */
1028 #define JVM_ACC_ENUM 0x4000 /* field is declared as element of enum */
1030 #define JVM_ACC_PUBLIC_BIT 0
1031 #define JVM_ACC_PRIVATE_BIT 1
1032 #define JVM_ACC_PROTECTED_BIT 2
1033 #define JVM_ACC_STATIC_BIT 3
1034 #define JVM_ACC_FINAL_BIT 4
1035 #define JVM_ACC_SYNCHRONIZED_BIT 5
1036 #define JVM_ACC_SUPER_BIT 5
1037 #define JVM_ACC_VOLATILE_BIT 6
1038 #define JVM_ACC_BRIDGE_BIT 6
1039 #define JVM_ACC_TRANSIENT_BIT 7
1040 #define JVM_ACC_VARARGS_BIT 7
1041 #define JVM_ACC_NATIVE_BIT 8
1042 #define JVM_ACC_INTERFACE_BIT 9
1043 #define JVM_ACC_ABSTRACT_BIT 10
1044 #define JVM_ACC_STRICT_BIT 11
1045 #define JVM_ACC_SYNTHETIC_BIT 12
1046 #define JVM_ACC_ANNOTATION_BIT 13
1047 #define JVM_ACC_ENUM_BIT 14
1049 // NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/utilities/ConstantTag.java
1050 enum {
1051 JVM_CONSTANT_Utf8 = 1,
1052 JVM_CONSTANT_Unicode, /* unused */
1053 JVM_CONSTANT_Integer,
1054 JVM_CONSTANT_Float,
1055 JVM_CONSTANT_Long,
1056 JVM_CONSTANT_Double,
1057 JVM_CONSTANT_Class,
1058 JVM_CONSTANT_String,
1059 JVM_CONSTANT_Fieldref,
1060 JVM_CONSTANT_Methodref,
1061 JVM_CONSTANT_InterfaceMethodref,
1062 JVM_CONSTANT_NameAndType,
1063 JVM_CONSTANT_MethodHandle = 15, // JSR 292
1064 JVM_CONSTANT_MethodType = 16, // JSR 292
1065 //JVM_CONSTANT_(unused) = 17, // JSR 292 early drafts only
1066 JVM_CONSTANT_InvokeDynamic = 18, // JSR 292
1067 JVM_CONSTANT_ExternalMax = 18 // Last tag found in classfiles
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 JNIEXPORT int JNICALL
1409 JVM_GetHostName(char* name, int namelen);
1411 /*
1412 * The standard printing functions supported by the Java VM. (Should they
1413 * be renamed to JVM_* in the future?
1414 */
1416 /*
1417 * BE CAREFUL! The following functions do not implement the
1418 * full feature set of standard C printf formats.
1419 */
1420 JNIEXPORT int
1421 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1423 JNIEXPORT int
1424 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1426 JNIEXPORT int
1427 jio_fprintf(FILE *, const char *fmt, ...);
1429 JNIEXPORT int
1430 jio_vfprintf(FILE *, const char *fmt, va_list args);
1433 JNIEXPORT void * JNICALL
1434 JVM_RawMonitorCreate(void);
1436 JNIEXPORT void JNICALL
1437 JVM_RawMonitorDestroy(void *mon);
1439 JNIEXPORT jint JNICALL
1440 JVM_RawMonitorEnter(void *mon);
1442 JNIEXPORT void JNICALL
1443 JVM_RawMonitorExit(void *mon);
1445 /*
1446 * java.lang.reflect.Method
1447 */
1448 JNIEXPORT jobject JNICALL
1449 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
1451 /*
1452 * java.lang.reflect.Constructor
1453 */
1454 JNIEXPORT jobject JNICALL
1455 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
1457 /*
1458 * java.lang.management support
1459 */
1460 JNIEXPORT void* JNICALL
1461 JVM_GetManagement(jint version);
1463 /*
1464 * com.sun.tools.attach.VirtualMachine support
1465 *
1466 * Initialize the agent properties with the properties maintained in the VM.
1467 */
1468 JNIEXPORT jobject JNICALL
1469 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1471 /* Generics reflection support.
1472 *
1473 * Returns information about the given class's EnclosingMethod
1474 * attribute, if present, or null if the class had no enclosing
1475 * method.
1476 *
1477 * If non-null, the returned array contains three elements. Element 0
1478 * is the java.lang.Class of which the enclosing method is a member,
1479 * and elements 1 and 2 are the java.lang.Strings for the enclosing
1480 * method's name and descriptor, respectively.
1481 */
1482 JNIEXPORT jobjectArray JNICALL
1483 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1485 /*
1486 * Java thread state support
1487 */
1488 enum {
1489 JAVA_THREAD_STATE_NEW = 0,
1490 JAVA_THREAD_STATE_RUNNABLE = 1,
1491 JAVA_THREAD_STATE_BLOCKED = 2,
1492 JAVA_THREAD_STATE_WAITING = 3,
1493 JAVA_THREAD_STATE_TIMED_WAITING = 4,
1494 JAVA_THREAD_STATE_TERMINATED = 5,
1495 JAVA_THREAD_STATE_COUNT = 6
1496 };
1498 /*
1499 * Returns an array of the threadStatus values representing the
1500 * given Java thread state. Returns NULL if the VM version is
1501 * incompatible with the JDK or doesn't support the given
1502 * Java thread state.
1503 */
1504 JNIEXPORT jintArray JNICALL
1505 JVM_GetThreadStateValues(JNIEnv* env, jint javaThreadState);
1507 /*
1508 * Returns an array of the substate names representing the
1509 * given Java thread state. Returns NULL if the VM version is
1510 * incompatible with the JDK or the VM doesn't support
1511 * the given Java thread state.
1512 * values must be the jintArray returned from JVM_GetThreadStateValues
1513 * and javaThreadState.
1514 */
1515 JNIEXPORT jobjectArray JNICALL
1516 JVM_GetThreadStateNames(JNIEnv* env, jint javaThreadState, jintArray values);
1518 /* =========================================================================
1519 * The following defines a private JVM interface that the JDK can query
1520 * for the JVM version and capabilities. sun.misc.Version defines
1521 * the methods for getting the VM version and its capabilities.
1522 *
1523 * When a new bit is added, the following should be updated to provide
1524 * access to the new capability:
1525 * HS: JVM_GetVersionInfo and Abstract_VM_Version class
1526 * SDK: Version class
1527 *
1528 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for
1529 * JVM to query for the JDK version and capabilities.
1530 *
1531 * When a new bit is added, the following should be updated to provide
1532 * access to the new capability:
1533 * HS: JDK_Version class
1534 * SDK: JDK_GetVersionInfo0
1535 *
1536 * ==========================================================================
1537 */
1538 typedef struct {
1539 /* HotSpot Express VM version string:
1540 * <major>.<minor>-bxx[-<identifier>][-<debug_flavor>]
1541 */
1542 unsigned int jvm_version; /* Consists of major.minor.0.build */
1543 unsigned int update_version : 8; /* 0 in HotSpot Express VM */
1544 unsigned int special_update_version : 8; /* 0 in HotSpot Express VM */
1545 unsigned int reserved1 : 16;
1546 unsigned int reserved2;
1548 /* The following bits represents JVM supports that JDK has dependency on.
1549 * JDK can use these bits to determine which JVM version
1550 * and support it has to maintain runtime compatibility.
1551 *
1552 * When a new bit is added in a minor or update release, make sure
1553 * the new bit is also added in the main/baseline.
1554 */
1555 unsigned int is_attachable : 1;
1556 unsigned int is_kernel_jvm : 1;
1557 unsigned int : 30;
1558 unsigned int : 32;
1559 unsigned int : 32;
1560 } jvm_version_info;
1562 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1563 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1564 // Micro version is 0 in HotSpot Express VM (set in jvm.cpp).
1565 #define JVM_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1566 /* Build number is available in all HotSpot Express VM builds.
1567 * It is defined in make/hotspot_version file.
1568 */
1569 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF))
1571 JNIEXPORT void JNICALL
1572 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size);
1574 typedef struct {
1575 // Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx
1576 unsigned int jdk_version; /* Consists of major, minor, micro (n.n.n) */
1577 /* and build number (xx) */
1578 unsigned int update_version : 8; /* Update release version (uu) */
1579 unsigned int special_update_version : 8; /* Special update release version (c)*/
1580 unsigned int reserved1 : 16;
1581 unsigned int reserved2;
1583 /* The following bits represents new JDK supports that VM has dependency on.
1584 * VM implementation can use these bits to determine which JDK version
1585 * and support it has to maintain runtime compatibility.
1586 *
1587 * When a new bit is added in a minor or update release, make sure
1588 * the new bit is also added in the main/baseline.
1589 */
1590 unsigned int thread_park_blocker : 1;
1591 unsigned int post_vm_init_hook_enabled : 1;
1592 unsigned int pending_list_uses_discovered_field : 1;
1593 unsigned int : 29;
1594 unsigned int : 32;
1595 unsigned int : 32;
1596 } jdk_version_info;
1598 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1599 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1600 #define JDK_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1602 /* Build number is available only for RE build (i.e. JDK_BUILD_NUMBER is set to bNN)
1603 * It will be zero for internal builds.
1604 */
1605 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF))
1607 /*
1608 * This is the function JDK_GetVersionInfo0 defined in libjava.so
1609 * that is dynamically looked up by JVM.
1610 */
1611 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size);
1613 /*
1614 * This structure is used by the launcher to get the default thread
1615 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1616 * version of 1.1. As it is not supported otherwise, it has been removed
1617 * from jni.h
1618 */
1619 typedef struct JDK1_1InitArgs {
1620 jint version;
1622 char **properties;
1623 jint checkSource;
1624 jint nativeStackSize;
1625 jint javaStackSize;
1626 jint minHeapSize;
1627 jint maxHeapSize;
1628 jint verifyMode;
1629 char *classpath;
1631 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1632 void (JNICALL *exit)(jint code);
1633 void (JNICALL *abort)(void);
1635 jint enableClassGC;
1636 jint enableVerboseGC;
1637 jint disableAsyncGC;
1638 jint verbose;
1639 jboolean debugging;
1640 jint debugPort;
1641 } JDK1_1InitArgs;
1643 #ifdef __cplusplus
1644 } /* extern "C" */
1645 #endif /* __cplusplus */
1647 #endif /* !_JAVASOFT_JVM_H_ */
1649 #endif // SHARE_VM_PRIMS_JVM_H
