Mercurial > jdk8-mips64-public > hotspot / file revision
src/share/vm/prims/jvm.h@ade95d680b42
src/share/vm/prims/jvm.h
Tue, 08 Jan 2013 14:01:36 -0500
- author
- coleenp
- date
- Tue, 08 Jan 2013 14:01:36 -0500
- changeset 4398
- ade95d680b42
- parent 4393
- 35431a769282
- child 4466
- b14da2e6f2dc
- permissions
- -rw-r--r--
8004728: Add hotspot support for parameter reflection
Summary: Add hotspot support for parameter reflection
Reviewed-by: acorn, jrose, coleenp
Contributed-by: eric.mccorkle@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
89 JNIEXPORT jobjectArray JNICALL
90 JVM_GetMethodParameters(JNIEnv *env, jobject method);
92 JNIEXPORT jint JNICALL
93 JVM_GetInterfaceVersion(void);
95 /*************************************************************************
96 PART 1: Functions for Native Libraries
97 ************************************************************************/
98 /*
99 * java.lang.Object
100 */
101 JNIEXPORT jint JNICALL
102 JVM_IHashCode(JNIEnv *env, jobject obj);
104 JNIEXPORT void JNICALL
105 JVM_MonitorWait(JNIEnv *env, jobject obj, jlong ms);
107 JNIEXPORT void JNICALL
108 JVM_MonitorNotify(JNIEnv *env, jobject obj);
110 JNIEXPORT void JNICALL
111 JVM_MonitorNotifyAll(JNIEnv *env, jobject obj);
113 JNIEXPORT jobject JNICALL
114 JVM_Clone(JNIEnv *env, jobject obj);
116 /*
117 * java.lang.String
118 */
119 JNIEXPORT jstring JNICALL
120 JVM_InternString(JNIEnv *env, jstring str);
122 /*
123 * java.lang.System
124 */
125 JNIEXPORT jlong JNICALL
126 JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored);
128 JNIEXPORT jlong JNICALL
129 JVM_NanoTime(JNIEnv *env, jclass ignored);
131 JNIEXPORT void JNICALL
132 JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos,
133 jobject dst, jint dst_pos, jint length);
135 JNIEXPORT jobject JNICALL
136 JVM_InitProperties(JNIEnv *env, jobject p);
138 /*
139 * java.io.File
140 */
141 JNIEXPORT void JNICALL
142 JVM_OnExit(void (*func)(void));
144 /*
145 * java.lang.Runtime
146 */
147 JNIEXPORT void JNICALL
148 JVM_Exit(jint code);
150 JNIEXPORT void JNICALL
151 JVM_Halt(jint code);
153 JNIEXPORT void JNICALL
154 JVM_GC(void);
156 /* Returns the number of real-time milliseconds that have elapsed since the
157 * least-recently-inspected heap object was last inspected by the garbage
158 * collector.
159 *
160 * For simple stop-the-world collectors this value is just the time
161 * since the most recent collection. For generational collectors it is the
162 * time since the oldest generation was most recently collected. Other
163 * collectors are free to return a pessimistic estimate of the elapsed time, or
164 * simply the time since the last full collection was performed.
165 *
166 * Note that in the presence of reference objects, a given object that is no
167 * longer strongly reachable may have to be inspected multiple times before it
168 * can be reclaimed.
169 */
170 JNIEXPORT jlong JNICALL
171 JVM_MaxObjectInspectionAge(void);
173 JNIEXPORT void JNICALL
174 JVM_TraceInstructions(jboolean on);
176 JNIEXPORT void JNICALL
177 JVM_TraceMethodCalls(jboolean on);
179 JNIEXPORT jlong JNICALL
180 JVM_TotalMemory(void);
182 JNIEXPORT jlong JNICALL
183 JVM_FreeMemory(void);
185 JNIEXPORT jlong JNICALL
186 JVM_MaxMemory(void);
188 JNIEXPORT jint JNICALL
189 JVM_ActiveProcessorCount(void);
191 JNIEXPORT void * JNICALL
192 JVM_LoadLibrary(const char *name);
194 JNIEXPORT void JNICALL
195 JVM_UnloadLibrary(void * handle);
197 JNIEXPORT void * JNICALL
198 JVM_FindLibraryEntry(void *handle, const char *name);
200 JNIEXPORT jboolean JNICALL
201 JVM_IsSupportedJNIVersion(jint version);
203 /*
204 * java.lang.Float and java.lang.Double
205 */
206 JNIEXPORT jboolean JNICALL
207 JVM_IsNaN(jdouble d);
209 /*
210 * java.lang.Throwable
211 */
212 JNIEXPORT void JNICALL
213 JVM_FillInStackTrace(JNIEnv *env, jobject throwable);
215 JNIEXPORT void JNICALL
216 JVM_PrintStackTrace(JNIEnv *env, jobject throwable, jobject printable);
218 JNIEXPORT jint JNICALL
219 JVM_GetStackTraceDepth(JNIEnv *env, jobject throwable);
221 JNIEXPORT jobject JNICALL
222 JVM_GetStackTraceElement(JNIEnv *env, jobject throwable, jint index);
224 /*
225 * java.lang.Compiler
226 */
227 JNIEXPORT void JNICALL
228 JVM_InitializeCompiler (JNIEnv *env, jclass compCls);
230 JNIEXPORT jboolean JNICALL
231 JVM_IsSilentCompiler(JNIEnv *env, jclass compCls);
233 JNIEXPORT jboolean JNICALL
234 JVM_CompileClass(JNIEnv *env, jclass compCls, jclass cls);
236 JNIEXPORT jboolean JNICALL
237 JVM_CompileClasses(JNIEnv *env, jclass cls, jstring jname);
239 JNIEXPORT jobject JNICALL
240 JVM_CompilerCommand(JNIEnv *env, jclass compCls, jobject arg);
242 JNIEXPORT void JNICALL
243 JVM_EnableCompiler(JNIEnv *env, jclass compCls);
245 JNIEXPORT void JNICALL
246 JVM_DisableCompiler(JNIEnv *env, jclass compCls);
248 /*
249 * java.lang.Thread
250 */
251 JNIEXPORT void JNICALL
252 JVM_StartThread(JNIEnv *env, jobject thread);
254 JNIEXPORT void JNICALL
255 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception);
257 JNIEXPORT jboolean JNICALL
258 JVM_IsThreadAlive(JNIEnv *env, jobject thread);
260 JNIEXPORT void JNICALL
261 JVM_SuspendThread(JNIEnv *env, jobject thread);
263 JNIEXPORT void JNICALL
264 JVM_ResumeThread(JNIEnv *env, jobject thread);
266 JNIEXPORT void JNICALL
267 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio);
269 JNIEXPORT void JNICALL
270 JVM_Yield(JNIEnv *env, jclass threadClass);
272 JNIEXPORT void JNICALL
273 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis);
275 JNIEXPORT jobject JNICALL
276 JVM_CurrentThread(JNIEnv *env, jclass threadClass);
278 JNIEXPORT jint JNICALL
279 JVM_CountStackFrames(JNIEnv *env, jobject thread);
281 JNIEXPORT void JNICALL
282 JVM_Interrupt(JNIEnv *env, jobject thread);
284 JNIEXPORT jboolean JNICALL
285 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted);
287 JNIEXPORT jboolean JNICALL
288 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);
290 JNIEXPORT void JNICALL
291 JVM_DumpAllStacks(JNIEnv *env, jclass unused);
293 JNIEXPORT jobjectArray JNICALL
294 JVM_GetAllThreads(JNIEnv *env, jclass dummy);
296 JNIEXPORT void JNICALL
297 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name);
299 /* getStackTrace() and getAllStackTraces() method */
300 JNIEXPORT jobjectArray JNICALL
301 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
303 /*
304 * java.lang.SecurityManager
305 */
306 JNIEXPORT jclass JNICALL
307 JVM_CurrentLoadedClass(JNIEnv *env);
309 JNIEXPORT jobject JNICALL
310 JVM_CurrentClassLoader(JNIEnv *env);
312 JNIEXPORT jobjectArray JNICALL
313 JVM_GetClassContext(JNIEnv *env);
315 JNIEXPORT jint JNICALL
316 JVM_ClassDepth(JNIEnv *env, jstring name);
318 JNIEXPORT jint JNICALL
319 JVM_ClassLoaderDepth(JNIEnv *env);
321 /*
322 * java.lang.Package
323 */
324 JNIEXPORT jstring JNICALL
325 JVM_GetSystemPackage(JNIEnv *env, jstring name);
327 JNIEXPORT jobjectArray JNICALL
328 JVM_GetSystemPackages(JNIEnv *env);
330 /*
331 * java.io.ObjectInputStream
332 */
333 JNIEXPORT jobject JNICALL
334 JVM_AllocateNewObject(JNIEnv *env, jobject obj, jclass currClass,
335 jclass initClass);
337 JNIEXPORT jobject JNICALL
338 JVM_AllocateNewArray(JNIEnv *env, jobject obj, jclass currClass,
339 jint length);
341 JNIEXPORT jobject JNICALL
342 JVM_LatestUserDefinedLoader(JNIEnv *env);
344 /*
345 * This function has been deprecated and should not be considered
346 * part of the specified JVM interface.
347 */
348 JNIEXPORT jclass JNICALL
349 JVM_LoadClass0(JNIEnv *env, jobject obj, jclass currClass,
350 jstring currClassName);
352 /*
353 * java.lang.reflect.Array
354 */
355 JNIEXPORT jint JNICALL
356 JVM_GetArrayLength(JNIEnv *env, jobject arr);
358 JNIEXPORT jobject JNICALL
359 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
361 JNIEXPORT jvalue JNICALL
362 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
364 JNIEXPORT void JNICALL
365 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
367 JNIEXPORT void JNICALL
368 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
369 unsigned char vCode);
371 JNIEXPORT jobject JNICALL
372 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
374 JNIEXPORT jobject JNICALL
375 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
377 /*
378 * java.lang.Class and java.lang.ClassLoader
379 */
380 /*
381 * Returns the class in which the code invoking the native method
382 * belongs.
383 *
384 * Note that in JDK 1.1, native methods did not create a frame.
385 * In 1.2, they do. Therefore native methods like Class.forName
386 * can no longer look at the current frame for the caller class.
387 */
388 JNIEXPORT jclass JNICALL
389 JVM_GetCallerClass(JNIEnv *env, int n);
391 /*
392 * Find primitive classes
393 * utf: class name
394 */
395 JNIEXPORT jclass JNICALL
396 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
398 /*
399 * Link the class
400 */
401 JNIEXPORT void JNICALL
402 JVM_ResolveClass(JNIEnv *env, jclass cls);
404 /*
405 * Find a class from a given class loader. Throw ClassNotFoundException
406 * or NoClassDefFoundError depending on the value of the last
407 * argument.
408 */
409 JNIEXPORT jclass JNICALL
410 JVM_FindClassFromClassLoader(JNIEnv *env, const char *name, jboolean init,
411 jobject loader, jboolean throwError);
413 /*
414 * Find a class from a boot class loader. Returns NULL if class not found.
415 */
416 JNIEXPORT jclass JNICALL
417 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
419 /*
420 * Find a class from a given class.
421 */
422 JNIEXPORT jclass JNICALL
423 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
424 jclass from);
426 /* Find a loaded class cached by the VM */
427 JNIEXPORT jclass JNICALL
428 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
430 /* Define a class */
431 JNIEXPORT jclass JNICALL
432 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
433 jsize len, jobject pd);
435 /* Define a class with a source (added in JDK1.5) */
436 JNIEXPORT jclass JNICALL
437 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
438 const jbyte *buf, jsize len, jobject pd,
439 const char *source);
441 /* Define a class with a source with conditional verification (added HSX 14)
442 * -Xverify:all will verify anyway, -Xverify:none will not verify,
443 * -Xverify:remote (default) will obey this conditional
444 * i.e. true = should_verify_class
445 */
446 JNIEXPORT jclass JNICALL
447 JVM_DefineClassWithSourceCond(JNIEnv *env, const char *name,
448 jobject loader, const jbyte *buf,
449 jsize len, jobject pd, const char *source,
450 jboolean verify);
452 /*
453 * Reflection support functions
454 */
456 JNIEXPORT jstring JNICALL
457 JVM_GetClassName(JNIEnv *env, jclass cls);
459 JNIEXPORT jobjectArray JNICALL
460 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
462 JNIEXPORT jobject JNICALL
463 JVM_GetClassLoader(JNIEnv *env, jclass cls);
465 JNIEXPORT jboolean JNICALL
466 JVM_IsInterface(JNIEnv *env, jclass cls);
468 JNIEXPORT jobjectArray JNICALL
469 JVM_GetClassSigners(JNIEnv *env, jclass cls);
471 JNIEXPORT void JNICALL
472 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
474 JNIEXPORT jobject JNICALL
475 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
477 JNIEXPORT void JNICALL
478 JVM_SetProtectionDomain(JNIEnv *env, jclass cls, jobject protection_domain);
480 JNIEXPORT jboolean JNICALL
481 JVM_IsArrayClass(JNIEnv *env, jclass cls);
483 JNIEXPORT jboolean JNICALL
484 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
486 JNIEXPORT jclass JNICALL
487 JVM_GetComponentType(JNIEnv *env, jclass cls);
489 JNIEXPORT jint JNICALL
490 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
492 JNIEXPORT jobjectArray JNICALL
493 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
495 JNIEXPORT jclass JNICALL
496 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
498 /* Generics support (JDK 1.5) */
499 JNIEXPORT jstring JNICALL
500 JVM_GetClassSignature(JNIEnv *env, jclass cls);
502 /* Annotations support (JDK 1.5) */
503 JNIEXPORT jbyteArray JNICALL
504 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
506 /* Annotations support (JDK 1.6) */
508 // field is a handle to a java.lang.reflect.Field object
509 JNIEXPORT jbyteArray JNICALL
510 JVM_GetFieldAnnotations(JNIEnv *env, jobject field);
512 // method is a handle to a java.lang.reflect.Method object
513 JNIEXPORT jbyteArray JNICALL
514 JVM_GetMethodAnnotations(JNIEnv *env, jobject method);
516 // method is a handle to a java.lang.reflect.Method object
517 JNIEXPORT jbyteArray JNICALL
518 JVM_GetMethodDefaultAnnotationValue(JNIEnv *env, jobject method);
520 // method is a handle to a java.lang.reflect.Method object
521 JNIEXPORT jbyteArray JNICALL
522 JVM_GetMethodParameterAnnotations(JNIEnv *env, jobject method);
524 /* Type use annotations support (JDK 1.8) */
526 JNIEXPORT jbyteArray JNICALL
527 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls);
529 /*
530 * New (JDK 1.4) reflection implementation
531 */
533 JNIEXPORT jobjectArray JNICALL
534 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
536 JNIEXPORT jobjectArray JNICALL
537 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
539 JNIEXPORT jobjectArray JNICALL
540 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
542 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
543 This returns the access flags for the class as specified in the
544 class file rather than searching the InnerClasses attribute (if
545 present) to find the source-level access flags. Only the values of
546 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
547 valid. */
548 JNIEXPORT jint JNICALL
549 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
551 /*
552 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
553 */
555 JNIEXPORT jobject JNICALL
556 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
558 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
559 (JNIEnv *env, jobject obj, jobject unused);
561 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
562 (JNIEnv *env, jobject obj, jobject unused, jint index);
564 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
565 (JNIEnv *env, jobject obj, jobject unused, jint index);
567 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
568 (JNIEnv *env, jobject obj, jobject unused, jint index);
570 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
571 (JNIEnv *env, jobject obj, jobject unused, jint index);
573 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
574 (JNIEnv *env, jobject obj, jobject unused, jint index);
576 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
577 (JNIEnv *env, jobject obj, jobject unused, jint index);
579 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
580 (JNIEnv *env, jobject obj, jobject unused, jint index);
582 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
583 (JNIEnv *env, jobject obj, jobject unused, jint index);
585 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
586 (JNIEnv *env, jobject obj, jobject unused, jint index);
588 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
589 (JNIEnv *env, jobject obj, jobject unused, jint index);
591 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
592 (JNIEnv *env, jobject obj, jobject unused, jint index);
594 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
595 (JNIEnv *env, jobject obj, jobject unused, jint index);
597 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
598 (JNIEnv *env, jobject obj, jobject unused, jint index);
600 /*
601 * java.security.*
602 */
604 JNIEXPORT jobject JNICALL
605 JVM_DoPrivileged(JNIEnv *env, jclass cls,
606 jobject action, jobject context, jboolean wrapException);
608 JNIEXPORT jobject JNICALL
609 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
611 JNIEXPORT jobject JNICALL
612 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
614 /*
615 * Signal support, used to implement the shutdown sequence. Every VM must
616 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
617 * (^C) and the latter for external termination (kill, system shutdown, etc.).
618 * Other platform-dependent signal values may also be supported.
619 */
621 JNIEXPORT void * JNICALL
622 JVM_RegisterSignal(jint sig, void *handler);
624 JNIEXPORT jboolean JNICALL
625 JVM_RaiseSignal(jint sig);
627 JNIEXPORT jint JNICALL
628 JVM_FindSignal(const char *name);
630 /*
631 * Retrieve the assertion directives for the specified class.
632 */
633 JNIEXPORT jboolean JNICALL
634 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
636 /*
637 * Retrieve the assertion directives from the VM.
638 */
639 JNIEXPORT jobject JNICALL
640 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
642 /*
643 * java.util.concurrent.atomic.AtomicLong
644 */
645 JNIEXPORT jboolean JNICALL
646 JVM_SupportsCX8(void);
648 JNIEXPORT jboolean JNICALL
649 JVM_CX8Field(JNIEnv *env, jobject obj, jfieldID fldID, jlong oldVal, jlong newVal);
651 /*
652 * com.sun.dtrace.jsdt support
653 */
655 #define JVM_TRACING_DTRACE_VERSION 1
657 /*
658 * Structure to pass one probe description to JVM.
659 *
660 * The VM will overwrite the definition of the referenced method with
661 * code that will fire the probe.
662 */
663 typedef struct {
664 jmethodID method;
665 jstring function;
666 jstring name;
667 void* reserved[4]; // for future use
668 } JVM_DTraceProbe;
670 /**
671 * Encapsulates the stability ratings for a DTrace provider field
672 */
673 typedef struct {
674 jint nameStability;
675 jint dataStability;
676 jint dependencyClass;
677 } JVM_DTraceInterfaceAttributes;
679 /*
680 * Structure to pass one provider description to JVM
681 */
682 typedef struct {
683 jstring name;
684 JVM_DTraceProbe* probes;
685 jint probe_count;
686 JVM_DTraceInterfaceAttributes providerAttributes;
687 JVM_DTraceInterfaceAttributes moduleAttributes;
688 JVM_DTraceInterfaceAttributes functionAttributes;
689 JVM_DTraceInterfaceAttributes nameAttributes;
690 JVM_DTraceInterfaceAttributes argsAttributes;
691 void* reserved[4]; // for future use
692 } JVM_DTraceProvider;
694 /*
695 * Get the version number the JVM was built with
696 */
697 JNIEXPORT jint JNICALL
698 JVM_DTraceGetVersion(JNIEnv* env);
700 /*
701 * Register new probe with given signature, return global handle
702 *
703 * The version passed in is the version that the library code was
704 * built with.
705 */
706 JNIEXPORT jlong JNICALL
707 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name,
708 jint providers_count, JVM_DTraceProvider* providers);
710 /*
711 * Check JSDT probe
712 */
713 JNIEXPORT jboolean JNICALL
714 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method);
716 /*
717 * Destroy custom DOF
718 */
719 JNIEXPORT void JNICALL
720 JVM_DTraceDispose(JNIEnv* env, jlong handle);
722 /*
723 * Check to see if DTrace is supported by OS
724 */
725 JNIEXPORT jboolean JNICALL
726 JVM_DTraceIsSupported(JNIEnv* env);
728 /*************************************************************************
729 PART 2: Support for the Verifier and Class File Format Checker
730 ************************************************************************/
731 /*
732 * Return the class name in UTF format. The result is valid
733 * until JVM_ReleaseUTf is called.
734 *
735 * The caller must treat the string as a constant and not modify it
736 * in any way.
737 */
738 JNIEXPORT const char * JNICALL
739 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
741 /*
742 * Returns the constant pool types in the buffer provided by "types."
743 */
744 JNIEXPORT void JNICALL
745 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
747 /*
748 * Returns the number of Constant Pool entries.
749 */
750 JNIEXPORT jint JNICALL
751 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
753 /*
754 * Returns the number of *declared* fields or methods.
755 */
756 JNIEXPORT jint JNICALL
757 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
759 JNIEXPORT jint JNICALL
760 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
762 /*
763 * Returns the CP indexes of exceptions raised by a given method.
764 * Places the result in the given buffer.
765 *
766 * The method is identified by method_index.
767 */
768 JNIEXPORT void JNICALL
769 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
770 unsigned short *exceptions);
771 /*
772 * Returns the number of exceptions raised by a given method.
773 * The method is identified by method_index.
774 */
775 JNIEXPORT jint JNICALL
776 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
778 /*
779 * Returns the byte code sequence of a given method.
780 * Places the result in the given buffer.
781 *
782 * The method is identified by method_index.
783 */
784 JNIEXPORT void JNICALL
785 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
786 unsigned char *code);
788 /*
789 * Returns the length of the byte code sequence of a given method.
790 * The method is identified by method_index.
791 */
792 JNIEXPORT jint JNICALL
793 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
795 /*
796 * A structure used to a capture exception table entry in a Java method.
797 */
798 typedef struct {
799 jint start_pc;
800 jint end_pc;
801 jint handler_pc;
802 jint catchType;
803 } JVM_ExceptionTableEntryType;
805 /*
806 * Returns the exception table entry at entry_index of a given method.
807 * Places the result in the given buffer.
808 *
809 * The method is identified by method_index.
810 */
811 JNIEXPORT void JNICALL
812 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
813 jint entry_index,
814 JVM_ExceptionTableEntryType *entry);
816 /*
817 * Returns the length of the exception table of a given method.
818 * The method is identified by method_index.
819 */
820 JNIEXPORT jint JNICALL
821 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
823 /*
824 * Returns the modifiers of a given field.
825 * The field is identified by field_index.
826 */
827 JNIEXPORT jint JNICALL
828 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
830 /*
831 * Returns the modifiers of a given method.
832 * The method is identified by method_index.
833 */
834 JNIEXPORT jint JNICALL
835 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
837 /*
838 * Returns the number of local variables of a given method.
839 * The method is identified by method_index.
840 */
841 JNIEXPORT jint JNICALL
842 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
844 /*
845 * Returns the number of arguments (including this pointer) of a given method.
846 * The method is identified by method_index.
847 */
848 JNIEXPORT jint JNICALL
849 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
851 /*
852 * Returns the maximum amount of stack (in words) used by a given method.
853 * The method is identified by method_index.
854 */
855 JNIEXPORT jint JNICALL
856 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
858 /*
859 * Is a given method a constructor.
860 * The method is identified by method_index.
861 */
862 JNIEXPORT jboolean JNICALL
863 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
865 /*
866 * Returns the name of a given method in UTF format.
867 * The result remains valid until JVM_ReleaseUTF is called.
868 *
869 * The caller must treat the string as a constant and not modify it
870 * in any way.
871 */
872 JNIEXPORT const char * JNICALL
873 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
875 /*
876 * Returns the signature of a given method in UTF format.
877 * The result remains valid until JVM_ReleaseUTF is called.
878 *
879 * The caller must treat the string as a constant and not modify it
880 * in any way.
881 */
882 JNIEXPORT const char * JNICALL
883 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
885 /*
886 * Returns the name of the field refered to at a given constant pool
887 * index.
888 *
889 * The result is in UTF format and remains valid until JVM_ReleaseUTF
890 * is called.
891 *
892 * The caller must treat the string as a constant and not modify it
893 * in any way.
894 */
895 JNIEXPORT const char * JNICALL
896 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
898 /*
899 * Returns the name of the method refered to at a given constant pool
900 * index.
901 *
902 * The result is in UTF format and remains valid until JVM_ReleaseUTF
903 * is called.
904 *
905 * The caller must treat the string as a constant and not modify it
906 * in any way.
907 */
908 JNIEXPORT const char * JNICALL
909 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
911 /*
912 * Returns the signature of the method refered to at a given constant pool
913 * index.
914 *
915 * The result is in UTF format and remains valid until JVM_ReleaseUTF
916 * is called.
917 *
918 * The caller must treat the string as a constant and not modify it
919 * in any way.
920 */
921 JNIEXPORT const char * JNICALL
922 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
924 /*
925 * Returns the signature of the field refered to at a given constant pool
926 * index.
927 *
928 * The result is in UTF format and remains valid until JVM_ReleaseUTF
929 * is called.
930 *
931 * The caller must treat the string as a constant and not modify it
932 * in any way.
933 */
934 JNIEXPORT const char * JNICALL
935 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
937 /*
938 * Returns the class name refered to at a given constant pool index.
939 *
940 * The result is in UTF format and remains valid until JVM_ReleaseUTF
941 * is called.
942 *
943 * The caller must treat the string as a constant and not modify it
944 * in any way.
945 */
946 JNIEXPORT const char * JNICALL
947 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
949 /*
950 * Returns the class name refered to at a given constant pool index.
951 *
952 * The constant pool entry must refer to a CONSTANT_Fieldref.
953 *
954 * The result is in UTF format and remains valid until JVM_ReleaseUTF
955 * is called.
956 *
957 * The caller must treat the string as a constant and not modify it
958 * in any way.
959 */
960 JNIEXPORT const char * JNICALL
961 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
963 /*
964 * Returns the class name refered to at a given constant pool index.
965 *
966 * The constant pool entry must refer to CONSTANT_Methodref or
967 * CONSTANT_InterfaceMethodref.
968 *
969 * The result is in UTF format and remains valid until JVM_ReleaseUTF
970 * is called.
971 *
972 * The caller must treat the string as a constant and not modify it
973 * in any way.
974 */
975 JNIEXPORT const char * JNICALL
976 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
978 /*
979 * Returns the modifiers of a field in calledClass. The field is
980 * referred to in class cb at constant pool entry index.
981 *
982 * The caller must treat the string as a constant and not modify it
983 * in any way.
984 *
985 * Returns -1 if the field does not exist in calledClass.
986 */
987 JNIEXPORT jint JNICALL
988 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
990 /*
991 * Returns the modifiers of a method in calledClass. The method is
992 * referred to in class cb at constant pool entry index.
993 *
994 * Returns -1 if the method does not exist in calledClass.
995 */
996 JNIEXPORT jint JNICALL
997 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
999 /*
1000 * Releases the UTF string obtained from the VM.
1001 */
1002 JNIEXPORT void JNICALL
1003 JVM_ReleaseUTF(const char *utf);
1005 /*
1006 * Compare if two classes are in the same package.
1007 */
1008 JNIEXPORT jboolean JNICALL
1009 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
1011 /* Constants in class files */
1013 #define JVM_ACC_PUBLIC 0x0001 /* visible to everyone */
1014 #define JVM_ACC_PRIVATE 0x0002 /* visible only to the defining class */
1015 #define JVM_ACC_PROTECTED 0x0004 /* visible to subclasses */
1016 #define JVM_ACC_STATIC 0x0008 /* instance variable is static */
1017 #define JVM_ACC_FINAL 0x0010 /* no further subclassing, overriding */
1018 #define JVM_ACC_SYNCHRONIZED 0x0020 /* wrap method call in monitor lock */
1019 #define JVM_ACC_SUPER 0x0020 /* funky handling of invokespecial */
1020 #define JVM_ACC_VOLATILE 0x0040 /* can not cache in registers */
1021 #define JVM_ACC_BRIDGE 0x0040 /* bridge method generated by compiler */
1022 #define JVM_ACC_TRANSIENT 0x0080 /* not persistent */
1023 #define JVM_ACC_VARARGS 0x0080 /* method declared with variable number of args */
1024 #define JVM_ACC_NATIVE 0x0100 /* implemented in C */
1025 #define JVM_ACC_INTERFACE 0x0200 /* class is an interface */
1026 #define JVM_ACC_ABSTRACT 0x0400 /* no definition provided */
1027 #define JVM_ACC_STRICT 0x0800 /* strict floating point */
1028 #define JVM_ACC_SYNTHETIC 0x1000 /* compiler-generated class, method or field */
1029 #define JVM_ACC_ANNOTATION 0x2000 /* annotation type */
1030 #define JVM_ACC_ENUM 0x4000 /* field is declared as element of enum */
1032 #define JVM_ACC_PUBLIC_BIT 0
1033 #define JVM_ACC_PRIVATE_BIT 1
1034 #define JVM_ACC_PROTECTED_BIT 2
1035 #define JVM_ACC_STATIC_BIT 3
1036 #define JVM_ACC_FINAL_BIT 4
1037 #define JVM_ACC_SYNCHRONIZED_BIT 5
1038 #define JVM_ACC_SUPER_BIT 5
1039 #define JVM_ACC_VOLATILE_BIT 6
1040 #define JVM_ACC_BRIDGE_BIT 6
1041 #define JVM_ACC_TRANSIENT_BIT 7
1042 #define JVM_ACC_VARARGS_BIT 7
1043 #define JVM_ACC_NATIVE_BIT 8
1044 #define JVM_ACC_INTERFACE_BIT 9
1045 #define JVM_ACC_ABSTRACT_BIT 10
1046 #define JVM_ACC_STRICT_BIT 11
1047 #define JVM_ACC_SYNTHETIC_BIT 12
1048 #define JVM_ACC_ANNOTATION_BIT 13
1049 #define JVM_ACC_ENUM_BIT 14
1051 // NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/utilities/ConstantTag.java
1052 enum {
1053 JVM_CONSTANT_Utf8 = 1,
1054 JVM_CONSTANT_Unicode, /* unused */
1055 JVM_CONSTANT_Integer,
1056 JVM_CONSTANT_Float,
1057 JVM_CONSTANT_Long,
1058 JVM_CONSTANT_Double,
1059 JVM_CONSTANT_Class,
1060 JVM_CONSTANT_String,
1061 JVM_CONSTANT_Fieldref,
1062 JVM_CONSTANT_Methodref,
1063 JVM_CONSTANT_InterfaceMethodref,
1064 JVM_CONSTANT_NameAndType,
1065 JVM_CONSTANT_MethodHandle = 15, // JSR 292
1066 JVM_CONSTANT_MethodType = 16, // JSR 292
1067 //JVM_CONSTANT_(unused) = 17, // JSR 292 early drafts only
1068 JVM_CONSTANT_InvokeDynamic = 18, // JSR 292
1069 JVM_CONSTANT_ExternalMax = 18 // Last tag found in classfiles
1070 };
1072 /* JVM_CONSTANT_MethodHandle subtypes */
1073 enum {
1074 JVM_REF_getField = 1,
1075 JVM_REF_getStatic = 2,
1076 JVM_REF_putField = 3,
1077 JVM_REF_putStatic = 4,
1078 JVM_REF_invokeVirtual = 5,
1079 JVM_REF_invokeStatic = 6,
1080 JVM_REF_invokeSpecial = 7,
1081 JVM_REF_newInvokeSpecial = 8,
1082 JVM_REF_invokeInterface = 9
1083 };
1085 /* Used in the newarray instruction. */
1087 #define JVM_T_BOOLEAN 4
1088 #define JVM_T_CHAR 5
1089 #define JVM_T_FLOAT 6
1090 #define JVM_T_DOUBLE 7
1091 #define JVM_T_BYTE 8
1092 #define JVM_T_SHORT 9
1093 #define JVM_T_INT 10
1094 #define JVM_T_LONG 11
1096 /* JVM method signatures */
1098 #define JVM_SIGNATURE_ARRAY '['
1099 #define JVM_SIGNATURE_BYTE 'B'
1100 #define JVM_SIGNATURE_CHAR 'C'
1101 #define JVM_SIGNATURE_CLASS 'L'
1102 #define JVM_SIGNATURE_ENDCLASS ';'
1103 #define JVM_SIGNATURE_ENUM 'E'
1104 #define JVM_SIGNATURE_FLOAT 'F'
1105 #define JVM_SIGNATURE_DOUBLE 'D'
1106 #define JVM_SIGNATURE_FUNC '('
1107 #define JVM_SIGNATURE_ENDFUNC ')'
1108 #define JVM_SIGNATURE_INT 'I'
1109 #define JVM_SIGNATURE_LONG 'J'
1110 #define JVM_SIGNATURE_SHORT 'S'
1111 #define JVM_SIGNATURE_VOID 'V'
1112 #define JVM_SIGNATURE_BOOLEAN 'Z'
1114 /*
1115 * A function defined by the byte-code verifier and called by the VM.
1116 * This is not a function implemented in the VM.
1117 *
1118 * Returns JNI_FALSE if verification fails. A detailed error message
1119 * will be places in msg_buf, whose length is specified by buf_len.
1120 */
1121 typedef jboolean (*verifier_fn_t)(JNIEnv *env,
1122 jclass cb,
1123 char * msg_buf,
1124 jint buf_len);
1127 /*
1128 * Support for a VM-independent class format checker.
1129 */
1130 typedef struct {
1131 unsigned long code; /* byte code */
1132 unsigned long excs; /* exceptions */
1133 unsigned long etab; /* catch table */
1134 unsigned long lnum; /* line number */
1135 unsigned long lvar; /* local vars */
1136 } method_size_info;
1138 typedef struct {
1139 unsigned int constants; /* constant pool */
1140 unsigned int fields;
1141 unsigned int methods;
1142 unsigned int interfaces;
1143 unsigned int fields2; /* number of static 2-word fields */
1144 unsigned int innerclasses; /* # of records in InnerClasses attr */
1146 method_size_info clinit; /* memory used in clinit */
1147 method_size_info main; /* used everywhere else */
1148 } class_size_info;
1150 /*
1151 * Functions defined in libjava.so to perform string conversions.
1152 *
1153 */
1155 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str);
1157 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b);
1159 /* This is the function defined in libjava.so that performs class
1160 * format checks. This functions fills in size information about
1161 * the class file and returns:
1162 *
1163 * 0: good
1164 * -1: out of memory
1165 * -2: bad format
1166 * -3: unsupported version
1167 * -4: bad class name
1168 */
1170 typedef jint (*check_format_fn_t)(char *class_name,
1171 unsigned char *data,
1172 unsigned int data_size,
1173 class_size_info *class_size,
1174 char *message_buffer,
1175 jint buffer_length,
1176 jboolean measure_only,
1177 jboolean check_relaxed);
1179 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1180 JVM_ACC_FINAL | \
1181 JVM_ACC_SUPER | \
1182 JVM_ACC_INTERFACE | \
1183 JVM_ACC_ABSTRACT | \
1184 JVM_ACC_ANNOTATION | \
1185 JVM_ACC_ENUM | \
1186 JVM_ACC_SYNTHETIC)
1188 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1189 JVM_ACC_PRIVATE | \
1190 JVM_ACC_PROTECTED | \
1191 JVM_ACC_STATIC | \
1192 JVM_ACC_FINAL | \
1193 JVM_ACC_VOLATILE | \
1194 JVM_ACC_TRANSIENT | \
1195 JVM_ACC_ENUM | \
1196 JVM_ACC_SYNTHETIC)
1198 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1199 JVM_ACC_PRIVATE | \
1200 JVM_ACC_PROTECTED | \
1201 JVM_ACC_STATIC | \
1202 JVM_ACC_FINAL | \
1203 JVM_ACC_SYNCHRONIZED | \
1204 JVM_ACC_BRIDGE | \
1205 JVM_ACC_VARARGS | \
1206 JVM_ACC_NATIVE | \
1207 JVM_ACC_ABSTRACT | \
1208 JVM_ACC_STRICT | \
1209 JVM_ACC_SYNTHETIC)
1211 /*
1212 * This is the function defined in libjava.so to perform path
1213 * canonicalization. VM call this function before opening jar files
1214 * to load system classes.
1215 *
1216 */
1218 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len);
1220 /*************************************************************************
1221 PART 3: I/O and Network Support
1222 ************************************************************************/
1224 /* Note that the JVM IO functions are expected to return JVM_IO_ERR
1225 * when there is any kind of error. The caller can then use the
1226 * platform specific support (e.g., errno) to get the detailed
1227 * error info. The JVM_GetLastErrorString procedure may also be used
1228 * to obtain a descriptive error string.
1229 */
1230 #define JVM_IO_ERR (-1)
1232 /* For interruptible IO. Returning JVM_IO_INTR indicates that an IO
1233 * operation has been disrupted by Thread.interrupt. There are a
1234 * number of technical difficulties related to interruptible IO that
1235 * need to be solved. For example, most existing programs do not handle
1236 * InterruptedIOExceptions specially, they simply treat those as any
1237 * IOExceptions, which typically indicate fatal errors.
1238 *
1239 * There are also two modes of operation for interruptible IO. In the
1240 * resumption mode, an interrupted IO operation is guaranteed not to
1241 * have any side-effects, and can be restarted. In the termination mode,
1242 * an interrupted IO operation corrupts the underlying IO stream, so
1243 * that the only reasonable operation on an interrupted stream is to
1244 * close that stream. The resumption mode seems to be impossible to
1245 * implement on Win32 and Solaris. Implementing the termination mode is
1246 * easier, but it's not clear that's the right semantics.
1247 *
1248 * Interruptible IO is not supported on Win32.It can be enabled/disabled
1249 * using a compile-time flag on Solaris. Third-party JVM ports do not
1250 * need to implement interruptible IO.
1251 */
1252 #define JVM_IO_INTR (-2)
1254 /* Write a string into the given buffer, in the platform's local encoding,
1255 * that describes the most recent system-level error to occur in this thread.
1256 * Return the length of the string or zero if no error occurred.
1257 */
1258 JNIEXPORT jint JNICALL
1259 JVM_GetLastErrorString(char *buf, int len);
1261 /*
1262 * Convert a pathname into native format. This function does syntactic
1263 * cleanup, such as removing redundant separator characters. It modifies
1264 * the given pathname string in place.
1265 */
1266 JNIEXPORT char * JNICALL
1267 JVM_NativePath(char *);
1269 /*
1270 * JVM I/O error codes
1271 */
1272 #define JVM_EEXIST -100
1274 /*
1275 * Open a file descriptor. This function returns a negative error code
1276 * on error, and a non-negative integer that is the file descriptor on
1277 * success.
1278 */
1279 JNIEXPORT jint JNICALL
1280 JVM_Open(const char *fname, jint flags, jint mode);
1282 /*
1283 * Close a file descriptor. This function returns -1 on error, and 0
1284 * on success.
1285 *
1286 * fd the file descriptor to close.
1287 */
1288 JNIEXPORT jint JNICALL
1289 JVM_Close(jint fd);
1291 /*
1292 * Read data from a file decriptor into a char array.
1293 *
1294 * fd the file descriptor to read from.
1295 * buf the buffer where to put the read data.
1296 * nbytes the number of bytes to read.
1297 *
1298 * This function returns -1 on error, and 0 on success.
1299 */
1300 JNIEXPORT jint JNICALL
1301 JVM_Read(jint fd, char *buf, jint nbytes);
1303 /*
1304 * Write data from a char array to a file decriptor.
1305 *
1306 * fd the file descriptor to read from.
1307 * buf the buffer from which to fetch the data.
1308 * nbytes the number of bytes to write.
1309 *
1310 * This function returns -1 on error, and 0 on success.
1311 */
1312 JNIEXPORT jint JNICALL
1313 JVM_Write(jint fd, char *buf, jint nbytes);
1315 /*
1316 * Returns the number of bytes available for reading from a given file
1317 * descriptor
1318 */
1319 JNIEXPORT jint JNICALL
1320 JVM_Available(jint fd, jlong *pbytes);
1322 /*
1323 * Move the file descriptor pointer from whence by offset.
1324 *
1325 * fd the file descriptor to move.
1326 * offset the number of bytes to move it by.
1327 * whence the start from where to move it.
1328 *
1329 * This function returns the resulting pointer location.
1330 */
1331 JNIEXPORT jlong JNICALL
1332 JVM_Lseek(jint fd, jlong offset, jint whence);
1334 /*
1335 * Set the length of the file associated with the given descriptor to the given
1336 * length. If the new length is longer than the current length then the file
1337 * is extended; the contents of the extended portion are not defined. The
1338 * value of the file pointer is undefined after this procedure returns.
1339 */
1340 JNIEXPORT jint JNICALL
1341 JVM_SetLength(jint fd, jlong length);
1343 /*
1344 * Synchronize the file descriptor's in memory state with that of the
1345 * physical device. Return of -1 is an error, 0 is OK.
1346 */
1347 JNIEXPORT jint JNICALL
1348 JVM_Sync(jint fd);
1350 /*
1351 * Networking library support
1352 */
1354 JNIEXPORT jint JNICALL
1355 JVM_InitializeSocketLibrary(void);
1357 struct sockaddr;
1359 JNIEXPORT jint JNICALL
1360 JVM_Socket(jint domain, jint type, jint protocol);
1362 JNIEXPORT jint JNICALL
1363 JVM_SocketClose(jint fd);
1365 JNIEXPORT jint JNICALL
1366 JVM_SocketShutdown(jint fd, jint howto);
1368 JNIEXPORT jint JNICALL
1369 JVM_Recv(jint fd, char *buf, jint nBytes, jint flags);
1371 JNIEXPORT jint JNICALL
1372 JVM_Send(jint fd, char *buf, jint nBytes, jint flags);
1374 JNIEXPORT jint JNICALL
1375 JVM_Timeout(int fd, long timeout);
1377 JNIEXPORT jint JNICALL
1378 JVM_Listen(jint fd, jint count);
1380 JNIEXPORT jint JNICALL
1381 JVM_Connect(jint fd, struct sockaddr *him, jint len);
1383 JNIEXPORT jint JNICALL
1384 JVM_Bind(jint fd, struct sockaddr *him, jint len);
1386 JNIEXPORT jint JNICALL
1387 JVM_Accept(jint fd, struct sockaddr *him, jint *len);
1389 JNIEXPORT jint JNICALL
1390 JVM_RecvFrom(jint fd, char *buf, int nBytes,
1391 int flags, struct sockaddr *from, int *fromlen);
1393 JNIEXPORT jint JNICALL
1394 JVM_SendTo(jint fd, char *buf, int len,
1395 int flags, struct sockaddr *to, int tolen);
1397 JNIEXPORT jint JNICALL
1398 JVM_SocketAvailable(jint fd, jint *result);
1401 JNIEXPORT jint JNICALL
1402 JVM_GetSockName(jint fd, struct sockaddr *him, int *len);
1404 JNIEXPORT jint JNICALL
1405 JVM_GetSockOpt(jint fd, int level, int optname, char *optval, int *optlen);
1407 JNIEXPORT jint JNICALL
1408 JVM_SetSockOpt(jint fd, int level, int optname, const char *optval, int optlen);
1410 JNIEXPORT int JNICALL
1411 JVM_GetHostName(char* name, int namelen);
1413 /*
1414 * The standard printing functions supported by the Java VM. (Should they
1415 * be renamed to JVM_* in the future?
1416 */
1418 /*
1419 * BE CAREFUL! The following functions do not implement the
1420 * full feature set of standard C printf formats.
1421 */
1422 JNIEXPORT int
1423 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1425 JNIEXPORT int
1426 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1428 JNIEXPORT int
1429 jio_fprintf(FILE *, const char *fmt, ...);
1431 JNIEXPORT int
1432 jio_vfprintf(FILE *, const char *fmt, va_list args);
1435 JNIEXPORT void * JNICALL
1436 JVM_RawMonitorCreate(void);
1438 JNIEXPORT void JNICALL
1439 JVM_RawMonitorDestroy(void *mon);
1441 JNIEXPORT jint JNICALL
1442 JVM_RawMonitorEnter(void *mon);
1444 JNIEXPORT void JNICALL
1445 JVM_RawMonitorExit(void *mon);
1447 /*
1448 * java.lang.reflect.Method
1449 */
1450 JNIEXPORT jobject JNICALL
1451 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
1453 /*
1454 * java.lang.reflect.Constructor
1455 */
1456 JNIEXPORT jobject JNICALL
1457 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
1459 /*
1460 * java.lang.management support
1461 */
1462 JNIEXPORT void* JNICALL
1463 JVM_GetManagement(jint version);
1465 /*
1466 * com.sun.tools.attach.VirtualMachine support
1467 *
1468 * Initialize the agent properties with the properties maintained in the VM.
1469 */
1470 JNIEXPORT jobject JNICALL
1471 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1473 /* Generics reflection support.
1474 *
1475 * Returns information about the given class's EnclosingMethod
1476 * attribute, if present, or null if the class had no enclosing
1477 * method.
1478 *
1479 * If non-null, the returned array contains three elements. Element 0
1480 * is the java.lang.Class of which the enclosing method is a member,
1481 * and elements 1 and 2 are the java.lang.Strings for the enclosing
1482 * method's name and descriptor, respectively.
1483 */
1484 JNIEXPORT jobjectArray JNICALL
1485 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1487 /*
1488 * Java thread state support
1489 */
1490 enum {
1491 JAVA_THREAD_STATE_NEW = 0,
1492 JAVA_THREAD_STATE_RUNNABLE = 1,
1493 JAVA_THREAD_STATE_BLOCKED = 2,
1494 JAVA_THREAD_STATE_WAITING = 3,
1495 JAVA_THREAD_STATE_TIMED_WAITING = 4,
1496 JAVA_THREAD_STATE_TERMINATED = 5,
1497 JAVA_THREAD_STATE_COUNT = 6
1498 };
1500 /*
1501 * Returns an array of the threadStatus values representing the
1502 * given Java thread state. Returns NULL if the VM version is
1503 * incompatible with the JDK or doesn't support the given
1504 * Java thread state.
1505 */
1506 JNIEXPORT jintArray JNICALL
1507 JVM_GetThreadStateValues(JNIEnv* env, jint javaThreadState);
1509 /*
1510 * Returns an array of the substate names representing the
1511 * given Java thread state. Returns NULL if the VM version is
1512 * incompatible with the JDK or the VM doesn't support
1513 * the given Java thread state.
1514 * values must be the jintArray returned from JVM_GetThreadStateValues
1515 * and javaThreadState.
1516 */
1517 JNIEXPORT jobjectArray JNICALL
1518 JVM_GetThreadStateNames(JNIEnv* env, jint javaThreadState, jintArray values);
1520 /* =========================================================================
1521 * The following defines a private JVM interface that the JDK can query
1522 * for the JVM version and capabilities. sun.misc.Version defines
1523 * the methods for getting the VM version and its capabilities.
1524 *
1525 * When a new bit is added, the following should be updated to provide
1526 * access to the new capability:
1527 * HS: JVM_GetVersionInfo and Abstract_VM_Version class
1528 * SDK: Version class
1529 *
1530 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for
1531 * JVM to query for the JDK version and capabilities.
1532 *
1533 * When a new bit is added, the following should be updated to provide
1534 * access to the new capability:
1535 * HS: JDK_Version class
1536 * SDK: JDK_GetVersionInfo0
1537 *
1538 * ==========================================================================
1539 */
1540 typedef struct {
1541 /* HotSpot Express VM version string:
1542 * <major>.<minor>-bxx[-<identifier>][-<debug_flavor>]
1543 */
1544 unsigned int jvm_version; /* Consists of major.minor.0.build */
1545 unsigned int update_version : 8; /* 0 in HotSpot Express VM */
1546 unsigned int special_update_version : 8; /* 0 in HotSpot Express VM */
1547 unsigned int reserved1 : 16;
1548 unsigned int reserved2;
1550 /* The following bits represents JVM supports that JDK has dependency on.
1551 * JDK can use these bits to determine which JVM version
1552 * and support it has to maintain runtime compatibility.
1553 *
1554 * When a new bit is added in a minor or update release, make sure
1555 * the new bit is also added in the main/baseline.
1556 */
1557 unsigned int is_attachable : 1;
1558 unsigned int is_kernel_jvm : 1;
1559 unsigned int : 30;
1560 unsigned int : 32;
1561 unsigned int : 32;
1562 } jvm_version_info;
1564 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1565 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1566 // Micro version is 0 in HotSpot Express VM (set in jvm.cpp).
1567 #define JVM_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1568 /* Build number is available in all HotSpot Express VM builds.
1569 * It is defined in make/hotspot_version file.
1570 */
1571 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF))
1573 JNIEXPORT void JNICALL
1574 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size);
1576 typedef struct {
1577 // Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx
1578 unsigned int jdk_version; /* Consists of major, minor, micro (n.n.n) */
1579 /* and build number (xx) */
1580 unsigned int update_version : 8; /* Update release version (uu) */
1581 unsigned int special_update_version : 8; /* Special update release version (c)*/
1582 unsigned int reserved1 : 16;
1583 unsigned int reserved2;
1585 /* The following bits represents new JDK supports that VM has dependency on.
1586 * VM implementation can use these bits to determine which JDK version
1587 * and support it has to maintain runtime compatibility.
1588 *
1589 * When a new bit is added in a minor or update release, make sure
1590 * the new bit is also added in the main/baseline.
1591 */
1592 unsigned int thread_park_blocker : 1;
1593 unsigned int post_vm_init_hook_enabled : 1;
1594 unsigned int pending_list_uses_discovered_field : 1;
1595 unsigned int : 29;
1596 unsigned int : 32;
1597 unsigned int : 32;
1598 } jdk_version_info;
1600 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1601 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1602 #define JDK_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1604 /* Build number is available only for RE build (i.e. JDK_BUILD_NUMBER is set to bNN)
1605 * It will be zero for internal builds.
1606 */
1607 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF))
1609 /*
1610 * This is the function JDK_GetVersionInfo0 defined in libjava.so
1611 * that is dynamically looked up by JVM.
1612 */
1613 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size);
1615 /*
1616 * This structure is used by the launcher to get the default thread
1617 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1618 * version of 1.1. As it is not supported otherwise, it has been removed
1619 * from jni.h
1620 */
1621 typedef struct JDK1_1InitArgs {
1622 jint version;
1624 char **properties;
1625 jint checkSource;
1626 jint nativeStackSize;
1627 jint javaStackSize;
1628 jint minHeapSize;
1629 jint maxHeapSize;
1630 jint verifyMode;
1631 char *classpath;
1633 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1634 void (JNICALL *exit)(jint code);
1635 void (JNICALL *abort)(void);
1637 jint enableClassGC;
1638 jint enableVerboseGC;
1639 jint disableAsyncGC;
1640 jint verbose;
1641 jboolean debugging;
1642 jint debugPort;
1643 } JDK1_1InitArgs;
1645 #ifdef __cplusplus
1646 } /* extern "C" */
1647 #endif /* __cplusplus */
1649 #endif /* !_JAVASOFT_JVM_H_ */
1651 #endif // SHARE_VM_PRIMS_JVM_H
