Mercurial > jdk8-mips64-public > hotspot / file revision
src/share/vm/prims/jvm.h@cb2d0a362639
src/share/vm/prims/jvm.h
Thu, 02 Dec 2010 05:45:54 -0800
- author
- sla
- date
- Thu, 02 Dec 2010 05:45:54 -0800
- changeset 2327
- cb2d0a362639
- parent 2322
- 828eafbd85cc
- child 2356
- 4de5f4101cfd
- permissions
- -rw-r--r--
6981484: Update development launcher
Summary: Add new development launcher called hotspot(.exe)
Reviewed-by: coleenp
1 /*
2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
25 #ifndef SHARE_VM_PRIMS_JVM_H
26 #define SHARE_VM_PRIMS_JVM_H
28 #include "prims/jni.h"
29 #include "runtime/reflectionCompat.hpp"
30 #ifdef TARGET_OS_FAMILY_linux
31 # include "jvm_linux.h"
32 #endif
33 #ifdef TARGET_OS_FAMILY_solaris
34 # include "jvm_solaris.h"
35 #endif
36 #ifdef TARGET_OS_FAMILY_windows
37 # include "jvm_windows.h"
38 #endif
40 #ifndef _JAVASOFT_JVM_H_
41 #define _JAVASOFT_JVM_H_
43 // HotSpot integration note:
44 //
45 // This file and jvm.h used with the JDK are identical,
46 // except for the three includes removed below and the
47 // SUPPORT_OLD_REFLECTION sections cut out of the JDK's jvm.h.
49 // #include <sys/stat.h>
50 // #include "jni.h"
51 // #include "jvm_md.h"
54 #ifdef __cplusplus
55 extern "C" {
56 #endif
58 /*
59 * This file contains additional functions exported from the VM.
60 * These functions are complementary to the standard JNI support.
61 * There are three parts to this file:
62 *
63 * First, this file contains the VM-related functions needed by native
64 * libraries in the standard Java API. For example, the java.lang.Object
65 * class needs VM-level functions that wait for and notify monitors.
66 *
67 * Second, this file contains the functions and constant definitions
68 * needed by the byte code verifier and class file format checker.
69 * These functions allow the verifier and format checker to be written
70 * in a VM-independent way.
71 *
72 * Third, this file contains various I/O and nerwork operations needed
73 * by the standard Java I/O and network APIs.
74 */
76 /*
77 * Bump the version number when either of the following happens:
78 *
79 * 1. There is a change in JVM_* functions.
80 *
81 * 2. There is a change in the contract between VM and Java classes.
82 * For example, if the VM relies on a new private field in Thread
83 * class.
84 */
86 #define JVM_INTERFACE_VERSION 4
89 JNIEXPORT jint JNICALL
90 JVM_GetInterfaceVersion(void);
92 /*************************************************************************
93 PART 1: Functions for Native Libraries
94 ************************************************************************/
95 /*
96 * java.lang.Object
97 */
98 JNIEXPORT jint JNICALL
99 JVM_IHashCode(JNIEnv *env, jobject obj);
101 JNIEXPORT void JNICALL
102 JVM_MonitorWait(JNIEnv *env, jobject obj, jlong ms);
104 JNIEXPORT void JNICALL
105 JVM_MonitorNotify(JNIEnv *env, jobject obj);
107 JNIEXPORT void JNICALL
108 JVM_MonitorNotifyAll(JNIEnv *env, jobject obj);
110 JNIEXPORT jobject JNICALL
111 JVM_Clone(JNIEnv *env, jobject obj);
113 /*
114 * java.lang.String
115 */
116 JNIEXPORT jstring JNICALL
117 JVM_InternString(JNIEnv *env, jstring str);
119 /*
120 * java.lang.System
121 */
122 JNIEXPORT jlong JNICALL
123 JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored);
125 JNIEXPORT jlong JNICALL
126 JVM_NanoTime(JNIEnv *env, jclass ignored);
128 JNIEXPORT void JNICALL
129 JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos,
130 jobject dst, jint dst_pos, jint length);
132 JNIEXPORT jobject JNICALL
133 JVM_InitProperties(JNIEnv *env, jobject p);
135 /*
136 * java.io.File
137 */
138 JNIEXPORT void JNICALL
139 JVM_OnExit(void (*func)(void));
141 /*
142 * java.lang.Runtime
143 */
144 JNIEXPORT void JNICALL
145 JVM_Exit(jint code);
147 JNIEXPORT void JNICALL
148 JVM_Halt(jint code);
150 JNIEXPORT void JNICALL
151 JVM_GC(void);
153 /* Returns the number of real-time milliseconds that have elapsed since the
154 * least-recently-inspected heap object was last inspected by the garbage
155 * collector.
156 *
157 * For simple stop-the-world collectors this value is just the time
158 * since the most recent collection. For generational collectors it is the
159 * time since the oldest generation was most recently collected. Other
160 * collectors are free to return a pessimistic estimate of the elapsed time, or
161 * simply the time since the last full collection was performed.
162 *
163 * Note that in the presence of reference objects, a given object that is no
164 * longer strongly reachable may have to be inspected multiple times before it
165 * can be reclaimed.
166 */
167 JNIEXPORT jlong JNICALL
168 JVM_MaxObjectInspectionAge(void);
170 JNIEXPORT void JNICALL
171 JVM_TraceInstructions(jboolean on);
173 JNIEXPORT void JNICALL
174 JVM_TraceMethodCalls(jboolean on);
176 JNIEXPORT jlong JNICALL
177 JVM_TotalMemory(void);
179 JNIEXPORT jlong JNICALL
180 JVM_FreeMemory(void);
182 JNIEXPORT jlong JNICALL
183 JVM_MaxMemory(void);
185 JNIEXPORT jint JNICALL
186 JVM_ActiveProcessorCount(void);
188 JNIEXPORT void * JNICALL
189 JVM_LoadLibrary(const char *name);
191 JNIEXPORT void JNICALL
192 JVM_UnloadLibrary(void * handle);
194 JNIEXPORT void * JNICALL
195 JVM_FindLibraryEntry(void *handle, const char *name);
197 JNIEXPORT jboolean JNICALL
198 JVM_IsSupportedJNIVersion(jint version);
200 /*
201 * java.lang.Float and java.lang.Double
202 */
203 JNIEXPORT jboolean JNICALL
204 JVM_IsNaN(jdouble d);
206 /*
207 * java.lang.Throwable
208 */
209 JNIEXPORT void JNICALL
210 JVM_FillInStackTrace(JNIEnv *env, jobject throwable);
212 JNIEXPORT void JNICALL
213 JVM_PrintStackTrace(JNIEnv *env, jobject throwable, jobject printable);
215 JNIEXPORT jint JNICALL
216 JVM_GetStackTraceDepth(JNIEnv *env, jobject throwable);
218 JNIEXPORT jobject JNICALL
219 JVM_GetStackTraceElement(JNIEnv *env, jobject throwable, jint index);
221 /*
222 * java.lang.Compiler
223 */
224 JNIEXPORT void JNICALL
225 JVM_InitializeCompiler (JNIEnv *env, jclass compCls);
227 JNIEXPORT jboolean JNICALL
228 JVM_IsSilentCompiler(JNIEnv *env, jclass compCls);
230 JNIEXPORT jboolean JNICALL
231 JVM_CompileClass(JNIEnv *env, jclass compCls, jclass cls);
233 JNIEXPORT jboolean JNICALL
234 JVM_CompileClasses(JNIEnv *env, jclass cls, jstring jname);
236 JNIEXPORT jobject JNICALL
237 JVM_CompilerCommand(JNIEnv *env, jclass compCls, jobject arg);
239 JNIEXPORT void JNICALL
240 JVM_EnableCompiler(JNIEnv *env, jclass compCls);
242 JNIEXPORT void JNICALL
243 JVM_DisableCompiler(JNIEnv *env, jclass compCls);
245 /*
246 * java.lang.Thread
247 */
248 JNIEXPORT void JNICALL
249 JVM_StartThread(JNIEnv *env, jobject thread);
251 JNIEXPORT void JNICALL
252 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception);
254 JNIEXPORT jboolean JNICALL
255 JVM_IsThreadAlive(JNIEnv *env, jobject thread);
257 JNIEXPORT void JNICALL
258 JVM_SuspendThread(JNIEnv *env, jobject thread);
260 JNIEXPORT void JNICALL
261 JVM_ResumeThread(JNIEnv *env, jobject thread);
263 JNIEXPORT void JNICALL
264 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio);
266 JNIEXPORT void JNICALL
267 JVM_Yield(JNIEnv *env, jclass threadClass);
269 JNIEXPORT void JNICALL
270 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis);
272 JNIEXPORT jobject JNICALL
273 JVM_CurrentThread(JNIEnv *env, jclass threadClass);
275 JNIEXPORT jint JNICALL
276 JVM_CountStackFrames(JNIEnv *env, jobject thread);
278 JNIEXPORT void JNICALL
279 JVM_Interrupt(JNIEnv *env, jobject thread);
281 JNIEXPORT jboolean JNICALL
282 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted);
284 JNIEXPORT jboolean JNICALL
285 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);
287 JNIEXPORT void JNICALL
288 JVM_DumpAllStacks(JNIEnv *env, jclass unused);
290 JNIEXPORT jobjectArray JNICALL
291 JVM_GetAllThreads(JNIEnv *env, jclass dummy);
293 /* getStackTrace() and getAllStackTraces() method */
294 JNIEXPORT jobjectArray JNICALL
295 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
297 /*
298 * java.lang.SecurityManager
299 */
300 JNIEXPORT jclass JNICALL
301 JVM_CurrentLoadedClass(JNIEnv *env);
303 JNIEXPORT jobject JNICALL
304 JVM_CurrentClassLoader(JNIEnv *env);
306 JNIEXPORT jobjectArray JNICALL
307 JVM_GetClassContext(JNIEnv *env);
309 JNIEXPORT jint JNICALL
310 JVM_ClassDepth(JNIEnv *env, jstring name);
312 JNIEXPORT jint JNICALL
313 JVM_ClassLoaderDepth(JNIEnv *env);
315 /*
316 * java.lang.Package
317 */
318 JNIEXPORT jstring JNICALL
319 JVM_GetSystemPackage(JNIEnv *env, jstring name);
321 JNIEXPORT jobjectArray JNICALL
322 JVM_GetSystemPackages(JNIEnv *env);
324 /*
325 * java.io.ObjectInputStream
326 */
327 JNIEXPORT jobject JNICALL
328 JVM_AllocateNewObject(JNIEnv *env, jobject obj, jclass currClass,
329 jclass initClass);
331 JNIEXPORT jobject JNICALL
332 JVM_AllocateNewArray(JNIEnv *env, jobject obj, jclass currClass,
333 jint length);
335 JNIEXPORT jobject JNICALL
336 JVM_LatestUserDefinedLoader(JNIEnv *env);
338 /*
339 * This function has been deprecated and should not be considered
340 * part of the specified JVM interface.
341 */
342 JNIEXPORT jclass JNICALL
343 JVM_LoadClass0(JNIEnv *env, jobject obj, jclass currClass,
344 jstring currClassName);
346 /*
347 * java.lang.reflect.Array
348 */
349 JNIEXPORT jint JNICALL
350 JVM_GetArrayLength(JNIEnv *env, jobject arr);
352 JNIEXPORT jobject JNICALL
353 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
355 JNIEXPORT jvalue JNICALL
356 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
358 JNIEXPORT void JNICALL
359 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
361 JNIEXPORT void JNICALL
362 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
363 unsigned char vCode);
365 JNIEXPORT jobject JNICALL
366 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
368 JNIEXPORT jobject JNICALL
369 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
371 /*
372 * java.lang.Class and java.lang.ClassLoader
373 */
374 /*
375 * Returns the class in which the code invoking the native method
376 * belongs.
377 *
378 * Note that in JDK 1.1, native methods did not create a frame.
379 * In 1.2, they do. Therefore native methods like Class.forName
380 * can no longer look at the current frame for the caller class.
381 */
382 JNIEXPORT jclass JNICALL
383 JVM_GetCallerClass(JNIEnv *env, int n);
385 /*
386 * Find primitive classes
387 * utf: class name
388 */
389 JNIEXPORT jclass JNICALL
390 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
392 /*
393 * Link the class
394 */
395 JNIEXPORT void JNICALL
396 JVM_ResolveClass(JNIEnv *env, jclass cls);
398 /*
399 * Find a class from a given class loader. Throw ClassNotFoundException
400 * or NoClassDefFoundError depending on the value of the last
401 * argument.
402 */
403 JNIEXPORT jclass JNICALL
404 JVM_FindClassFromClassLoader(JNIEnv *env, const char *name, jboolean init,
405 jobject loader, jboolean throwError);
407 /*
408 * Find a class from a boot class loader. Returns NULL if class not found.
409 */
410 JNIEXPORT jclass JNICALL
411 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
413 /*
414 * Find a class from a given class.
415 */
416 JNIEXPORT jclass JNICALL
417 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
418 jclass from);
420 /* Find a loaded class cached by the VM */
421 JNIEXPORT jclass JNICALL
422 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
424 /* Define a class */
425 JNIEXPORT jclass JNICALL
426 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
427 jsize len, jobject pd);
429 /* Define a class with a source (added in JDK1.5) */
430 JNIEXPORT jclass JNICALL
431 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
432 const jbyte *buf, jsize len, jobject pd,
433 const char *source);
435 /* Define a class with a source with conditional verification (added HSX 14)
436 * -Xverify:all will verify anyway, -Xverify:none will not verify,
437 * -Xverify:remote (default) will obey this conditional
438 * i.e. true = should_verify_class
439 */
440 JNIEXPORT jclass JNICALL
441 JVM_DefineClassWithSourceCond(JNIEnv *env, const char *name,
442 jobject loader, const jbyte *buf,
443 jsize len, jobject pd, const char *source,
444 jboolean verify);
446 /* Define a class with a source (MLVM) */
447 JNIEXPORT jclass JNICALL
448 JVM_DefineClassWithCP(JNIEnv *env, const char *name, jobject loader,
449 const jbyte *buf, jsize len, jobject pd,
450 const char *source,
451 // same args as JVM_DefineClassWithSource to this point
452 jobjectArray constants);
454 /*
455 * Reflection support functions
456 */
458 JNIEXPORT jstring JNICALL
459 JVM_GetClassName(JNIEnv *env, jclass cls);
461 JNIEXPORT jobjectArray JNICALL
462 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
464 JNIEXPORT jobject JNICALL
465 JVM_GetClassLoader(JNIEnv *env, jclass cls);
467 JNIEXPORT jboolean JNICALL
468 JVM_IsInterface(JNIEnv *env, jclass cls);
470 JNIEXPORT jobjectArray JNICALL
471 JVM_GetClassSigners(JNIEnv *env, jclass cls);
473 JNIEXPORT void JNICALL
474 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
476 JNIEXPORT jobject JNICALL
477 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
479 JNIEXPORT void JNICALL
480 JVM_SetProtectionDomain(JNIEnv *env, jclass cls, jobject protection_domain);
482 JNIEXPORT jboolean JNICALL
483 JVM_IsArrayClass(JNIEnv *env, jclass cls);
485 JNIEXPORT jboolean JNICALL
486 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
488 JNIEXPORT jclass JNICALL
489 JVM_GetComponentType(JNIEnv *env, jclass cls);
491 JNIEXPORT jint JNICALL
492 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
494 JNIEXPORT jobjectArray JNICALL
495 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
497 JNIEXPORT jclass JNICALL
498 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
500 /* Generics support (JDK 1.5) */
501 JNIEXPORT jstring JNICALL
502 JVM_GetClassSignature(JNIEnv *env, jclass cls);
504 /* Annotations support (JDK 1.5) */
505 JNIEXPORT jbyteArray JNICALL
506 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
508 /* Annotations support (JDK 1.6) */
510 // field is a handle to a java.lang.reflect.Field object
511 JNIEXPORT jbyteArray JNICALL
512 JVM_GetFieldAnnotations(JNIEnv *env, jobject field);
514 // method is a handle to a java.lang.reflect.Method object
515 JNIEXPORT jbyteArray JNICALL
516 JVM_GetMethodAnnotations(JNIEnv *env, jobject method);
518 // method is a handle to a java.lang.reflect.Method object
519 JNIEXPORT jbyteArray JNICALL
520 JVM_GetMethodDefaultAnnotationValue(JNIEnv *env, jobject method);
522 // method is a handle to a java.lang.reflect.Method object
523 JNIEXPORT jbyteArray JNICALL
524 JVM_GetMethodParameterAnnotations(JNIEnv *env, jobject method);
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 unused, jobject jcpool);
559 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
560 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
562 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
563 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
565 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
566 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
568 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
569 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
571 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
572 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
574 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
575 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
577 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
578 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
580 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
581 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
583 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
584 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
586 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
587 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
589 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
590 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
592 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
593 (JNIEnv *env, jobject unused, jobject jcpool, jint index);
595 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
596 (JNIEnv *env, jobject unused, jobject jcpool, 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 * sun.misc.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_InvokeDynamicTrans = 17, // JSR 292, only occurs in old class files
1066 JVM_CONSTANT_InvokeDynamic = 18 // JSR 292
1067 };
1069 /* JVM_CONSTANT_MethodHandle subtypes */
1070 enum {
1071 JVM_REF_getField = 1,
1072 JVM_REF_getStatic = 2,
1073 JVM_REF_putField = 3,
1074 JVM_REF_putStatic = 4,
1075 JVM_REF_invokeVirtual = 5,
1076 JVM_REF_invokeStatic = 6,
1077 JVM_REF_invokeSpecial = 7,
1078 JVM_REF_newInvokeSpecial = 8,
1079 JVM_REF_invokeInterface = 9
1080 };
1082 /* Used in the newarray instruction. */
1084 #define JVM_T_BOOLEAN 4
1085 #define JVM_T_CHAR 5
1086 #define JVM_T_FLOAT 6
1087 #define JVM_T_DOUBLE 7
1088 #define JVM_T_BYTE 8
1089 #define JVM_T_SHORT 9
1090 #define JVM_T_INT 10
1091 #define JVM_T_LONG 11
1093 /* JVM method signatures */
1095 #define JVM_SIGNATURE_ARRAY '['
1096 #define JVM_SIGNATURE_BYTE 'B'
1097 #define JVM_SIGNATURE_CHAR 'C'
1098 #define JVM_SIGNATURE_CLASS 'L'
1099 #define JVM_SIGNATURE_ENDCLASS ';'
1100 #define JVM_SIGNATURE_ENUM 'E'
1101 #define JVM_SIGNATURE_FLOAT 'F'
1102 #define JVM_SIGNATURE_DOUBLE 'D'
1103 #define JVM_SIGNATURE_FUNC '('
1104 #define JVM_SIGNATURE_ENDFUNC ')'
1105 #define JVM_SIGNATURE_INT 'I'
1106 #define JVM_SIGNATURE_LONG 'J'
1107 #define JVM_SIGNATURE_SHORT 'S'
1108 #define JVM_SIGNATURE_VOID 'V'
1109 #define JVM_SIGNATURE_BOOLEAN 'Z'
1111 /*
1112 * A function defined by the byte-code verifier and called by the VM.
1113 * This is not a function implemented in the VM.
1114 *
1115 * Returns JNI_FALSE if verification fails. A detailed error message
1116 * will be places in msg_buf, whose length is specified by buf_len.
1117 */
1118 typedef jboolean (*verifier_fn_t)(JNIEnv *env,
1119 jclass cb,
1120 char * msg_buf,
1121 jint buf_len);
1124 /*
1125 * Support for a VM-independent class format checker.
1126 */
1127 typedef struct {
1128 unsigned long code; /* byte code */
1129 unsigned long excs; /* exceptions */
1130 unsigned long etab; /* catch table */
1131 unsigned long lnum; /* line number */
1132 unsigned long lvar; /* local vars */
1133 } method_size_info;
1135 typedef struct {
1136 unsigned int constants; /* constant pool */
1137 unsigned int fields;
1138 unsigned int methods;
1139 unsigned int interfaces;
1140 unsigned int fields2; /* number of static 2-word fields */
1141 unsigned int innerclasses; /* # of records in InnerClasses attr */
1143 method_size_info clinit; /* memory used in clinit */
1144 method_size_info main; /* used everywhere else */
1145 } class_size_info;
1147 /*
1148 * Functions defined in libjava.so to perform string conversions.
1149 *
1150 */
1152 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str);
1154 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b);
1156 /* This is the function defined in libjava.so that performs class
1157 * format checks. This functions fills in size information about
1158 * the class file and returns:
1159 *
1160 * 0: good
1161 * -1: out of memory
1162 * -2: bad format
1163 * -3: unsupported version
1164 * -4: bad class name
1165 */
1167 typedef jint (*check_format_fn_t)(char *class_name,
1168 unsigned char *data,
1169 unsigned int data_size,
1170 class_size_info *class_size,
1171 char *message_buffer,
1172 jint buffer_length,
1173 jboolean measure_only,
1174 jboolean check_relaxed);
1176 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1177 JVM_ACC_FINAL | \
1178 JVM_ACC_SUPER | \
1179 JVM_ACC_INTERFACE | \
1180 JVM_ACC_ABSTRACT | \
1181 JVM_ACC_ANNOTATION | \
1182 JVM_ACC_ENUM | \
1183 JVM_ACC_SYNTHETIC)
1185 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1186 JVM_ACC_PRIVATE | \
1187 JVM_ACC_PROTECTED | \
1188 JVM_ACC_STATIC | \
1189 JVM_ACC_FINAL | \
1190 JVM_ACC_VOLATILE | \
1191 JVM_ACC_TRANSIENT | \
1192 JVM_ACC_ENUM | \
1193 JVM_ACC_SYNTHETIC)
1195 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1196 JVM_ACC_PRIVATE | \
1197 JVM_ACC_PROTECTED | \
1198 JVM_ACC_STATIC | \
1199 JVM_ACC_FINAL | \
1200 JVM_ACC_SYNCHRONIZED | \
1201 JVM_ACC_BRIDGE | \
1202 JVM_ACC_VARARGS | \
1203 JVM_ACC_NATIVE | \
1204 JVM_ACC_ABSTRACT | \
1205 JVM_ACC_STRICT | \
1206 JVM_ACC_SYNTHETIC)
1208 /*
1209 * This is the function defined in libjava.so to perform path
1210 * canonicalization. VM call this function before opening jar files
1211 * to load system classes.
1212 *
1213 */
1215 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len);
1217 /*************************************************************************
1218 PART 3: I/O and Network Support
1219 ************************************************************************/
1221 /* Note that the JVM IO functions are expected to return JVM_IO_ERR
1222 * when there is any kind of error. The caller can then use the
1223 * platform specific support (e.g., errno) to get the detailed
1224 * error info. The JVM_GetLastErrorString procedure may also be used
1225 * to obtain a descriptive error string.
1226 */
1227 #define JVM_IO_ERR (-1)
1229 /* For interruptible IO. Returning JVM_IO_INTR indicates that an IO
1230 * operation has been disrupted by Thread.interrupt. There are a
1231 * number of technical difficulties related to interruptible IO that
1232 * need to be solved. For example, most existing programs do not handle
1233 * InterruptedIOExceptions specially, they simply treat those as any
1234 * IOExceptions, which typically indicate fatal errors.
1235 *
1236 * There are also two modes of operation for interruptible IO. In the
1237 * resumption mode, an interrupted IO operation is guaranteed not to
1238 * have any side-effects, and can be restarted. In the termination mode,
1239 * an interrupted IO operation corrupts the underlying IO stream, so
1240 * that the only reasonable operation on an interrupted stream is to
1241 * close that stream. The resumption mode seems to be impossible to
1242 * implement on Win32 and Solaris. Implementing the termination mode is
1243 * easier, but it's not clear that's the right semantics.
1244 *
1245 * Interruptible IO is not supported on Win32.It can be enabled/disabled
1246 * using a compile-time flag on Solaris. Third-party JVM ports do not
1247 * need to implement interruptible IO.
1248 */
1249 #define JVM_IO_INTR (-2)
1251 /* Write a string into the given buffer, in the platform's local encoding,
1252 * that describes the most recent system-level error to occur in this thread.
1253 * Return the length of the string or zero if no error occurred.
1254 */
1255 JNIEXPORT jint JNICALL
1256 JVM_GetLastErrorString(char *buf, int len);
1258 /*
1259 * Convert a pathname into native format. This function does syntactic
1260 * cleanup, such as removing redundant separator characters. It modifies
1261 * the given pathname string in place.
1262 */
1263 JNIEXPORT char * JNICALL
1264 JVM_NativePath(char *);
1266 /*
1267 * JVM I/O error codes
1268 */
1269 #define JVM_EEXIST -100
1271 /*
1272 * Open a file descriptor. This function returns a negative error code
1273 * on error, and a non-negative integer that is the file descriptor on
1274 * success.
1275 */
1276 JNIEXPORT jint JNICALL
1277 JVM_Open(const char *fname, jint flags, jint mode);
1279 /*
1280 * Close a file descriptor. This function returns -1 on error, and 0
1281 * on success.
1282 *
1283 * fd the file descriptor to close.
1284 */
1285 JNIEXPORT jint JNICALL
1286 JVM_Close(jint fd);
1288 /*
1289 * Read data from a file decriptor into a char array.
1290 *
1291 * fd the file descriptor to read from.
1292 * buf the buffer where to put the read data.
1293 * nbytes the number of bytes to read.
1294 *
1295 * This function returns -1 on error, and 0 on success.
1296 */
1297 JNIEXPORT jint JNICALL
1298 JVM_Read(jint fd, char *buf, jint nbytes);
1300 /*
1301 * Write data from a char array to a file decriptor.
1302 *
1303 * fd the file descriptor to read from.
1304 * buf the buffer from which to fetch the data.
1305 * nbytes the number of bytes to write.
1306 *
1307 * This function returns -1 on error, and 0 on success.
1308 */
1309 JNIEXPORT jint JNICALL
1310 JVM_Write(jint fd, char *buf, jint nbytes);
1312 /*
1313 * Returns the number of bytes available for reading from a given file
1314 * descriptor
1315 */
1316 JNIEXPORT jint JNICALL
1317 JVM_Available(jint fd, jlong *pbytes);
1319 /*
1320 * Move the file descriptor pointer from whence by offset.
1321 *
1322 * fd the file descriptor to move.
1323 * offset the number of bytes to move it by.
1324 * whence the start from where to move it.
1325 *
1326 * This function returns the resulting pointer location.
1327 */
1328 JNIEXPORT jlong JNICALL
1329 JVM_Lseek(jint fd, jlong offset, jint whence);
1331 /*
1332 * Set the length of the file associated with the given descriptor to the given
1333 * length. If the new length is longer than the current length then the file
1334 * is extended; the contents of the extended portion are not defined. The
1335 * value of the file pointer is undefined after this procedure returns.
1336 */
1337 JNIEXPORT jint JNICALL
1338 JVM_SetLength(jint fd, jlong length);
1340 /*
1341 * Synchronize the file descriptor's in memory state with that of the
1342 * physical device. Return of -1 is an error, 0 is OK.
1343 */
1344 JNIEXPORT jint JNICALL
1345 JVM_Sync(jint fd);
1347 /*
1348 * Networking library support
1349 */
1351 JNIEXPORT jint JNICALL
1352 JVM_InitializeSocketLibrary(void);
1354 struct sockaddr;
1356 JNIEXPORT jint JNICALL
1357 JVM_Socket(jint domain, jint type, jint protocol);
1359 JNIEXPORT jint JNICALL
1360 JVM_SocketClose(jint fd);
1362 JNIEXPORT jint JNICALL
1363 JVM_SocketShutdown(jint fd, jint howto);
1365 JNIEXPORT jint JNICALL
1366 JVM_Recv(jint fd, char *buf, jint nBytes, jint flags);
1368 JNIEXPORT jint JNICALL
1369 JVM_Send(jint fd, char *buf, jint nBytes, jint flags);
1371 JNIEXPORT jint JNICALL
1372 JVM_Timeout(int fd, long timeout);
1374 JNIEXPORT jint JNICALL
1375 JVM_Listen(jint fd, jint count);
1377 JNIEXPORT jint JNICALL
1378 JVM_Connect(jint fd, struct sockaddr *him, jint len);
1380 JNIEXPORT jint JNICALL
1381 JVM_Bind(jint fd, struct sockaddr *him, jint len);
1383 JNIEXPORT jint JNICALL
1384 JVM_Accept(jint fd, struct sockaddr *him, jint *len);
1386 JNIEXPORT jint JNICALL
1387 JVM_RecvFrom(jint fd, char *buf, int nBytes,
1388 int flags, struct sockaddr *from, int *fromlen);
1390 JNIEXPORT jint JNICALL
1391 JVM_SendTo(jint fd, char *buf, int len,
1392 int flags, struct sockaddr *to, int tolen);
1394 JNIEXPORT jint JNICALL
1395 JVM_SocketAvailable(jint fd, jint *result);
1398 JNIEXPORT jint JNICALL
1399 JVM_GetSockName(jint fd, struct sockaddr *him, int *len);
1401 JNIEXPORT jint JNICALL
1402 JVM_GetSockOpt(jint fd, int level, int optname, char *optval, int *optlen);
1404 JNIEXPORT jint JNICALL
1405 JVM_SetSockOpt(jint fd, int level, int optname, const char *optval, int optlen);
1407 JNIEXPORT int JNICALL
1408 JVM_GetHostName(char* name, int namelen);
1410 /*
1411 * The standard printing functions supported by the Java VM. (Should they
1412 * be renamed to JVM_* in the future?
1413 */
1415 /*
1416 * BE CAREFUL! The following functions do not implement the
1417 * full feature set of standard C printf formats.
1418 */
1419 int
1420 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1422 int
1423 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1425 int
1426 jio_fprintf(FILE *, const char *fmt, ...);
1428 int
1429 jio_vfprintf(FILE *, const char *fmt, va_list args);
1432 JNIEXPORT void * JNICALL
1433 JVM_RawMonitorCreate(void);
1435 JNIEXPORT void JNICALL
1436 JVM_RawMonitorDestroy(void *mon);
1438 JNIEXPORT jint JNICALL
1439 JVM_RawMonitorEnter(void *mon);
1441 JNIEXPORT void JNICALL
1442 JVM_RawMonitorExit(void *mon);
1445 #ifdef SUPPORT_OLD_REFLECTION
1447 /*
1448 * Support for old native code-based (pre-JDK 1.4) reflection implementation.
1449 * Disabled by default in the product build.
1450 *
1451 * See reflection.hpp for information on SUPPORT_OLD_REFLECTION
1452 */
1454 /*
1455 * reflecting fields and methods.
1456 * which: 0 --- MEMBER_PUBLIC
1457 * 1 --- MEMBER_DECLARED
1458 * NOTE: absent in product build by default
1459 */
1461 JNIEXPORT jobjectArray JNICALL
1462 JVM_GetClassFields(JNIEnv *env, jclass cls, jint which);
1464 JNIEXPORT jobjectArray JNICALL
1465 JVM_GetClassMethods(JNIEnv *env, jclass cls, jint which);
1467 JNIEXPORT jobjectArray JNICALL
1468 JVM_GetClassConstructors(JNIEnv *env, jclass cls, jint which);
1470 JNIEXPORT jobject JNICALL
1471 JVM_GetClassField(JNIEnv *env, jclass cls, jstring name, jint which);
1473 JNIEXPORT jobject JNICALL
1474 JVM_GetClassMethod(JNIEnv *env, jclass cls, jstring name, jobjectArray types,
1475 jint which);
1476 JNIEXPORT jobject JNICALL
1477 JVM_GetClassConstructor(JNIEnv *env, jclass cls, jobjectArray types,
1478 jint which);
1480 /*
1481 * Implements Class.newInstance
1482 */
1483 JNIEXPORT jobject JNICALL
1484 JVM_NewInstance(JNIEnv *env, jclass cls);
1486 /*
1487 * java.lang.reflect.Field
1488 */
1489 JNIEXPORT jobject JNICALL
1490 JVM_GetField(JNIEnv *env, jobject field, jobject obj);
1492 JNIEXPORT jvalue JNICALL
1493 JVM_GetPrimitiveField(JNIEnv *env, jobject field, jobject obj,
1494 unsigned char wCode);
1496 JNIEXPORT void JNICALL
1497 JVM_SetField(JNIEnv *env, jobject field, jobject obj, jobject val);
1499 JNIEXPORT void JNICALL
1500 JVM_SetPrimitiveField(JNIEnv *env, jobject field, jobject obj, jvalue v,
1501 unsigned char vCode);
1503 /*
1504 * java.lang.reflect.Method
1505 */
1506 JNIEXPORT jobject JNICALL
1507 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
1509 /*
1510 * java.lang.reflect.Constructor
1511 */
1512 JNIEXPORT jobject JNICALL
1513 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
1515 #endif /* SUPPORT_OLD_REFLECTION */
1517 /*
1518 * java.lang.management support
1519 */
1520 JNIEXPORT void* JNICALL
1521 JVM_GetManagement(jint version);
1523 /*
1524 * com.sun.tools.attach.VirtualMachine support
1525 *
1526 * Initialize the agent properties with the properties maintained in the VM.
1527 */
1528 JNIEXPORT jobject JNICALL
1529 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1531 /* Generics reflection support.
1532 *
1533 * Returns information about the given class's EnclosingMethod
1534 * attribute, if present, or null if the class had no enclosing
1535 * method.
1536 *
1537 * If non-null, the returned array contains three elements. Element 0
1538 * is the java.lang.Class of which the enclosing method is a member,
1539 * and elements 1 and 2 are the java.lang.Strings for the enclosing
1540 * method's name and descriptor, respectively.
1541 */
1542 JNIEXPORT jobjectArray JNICALL
1543 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1545 /*
1546 * Java thread state support
1547 */
1548 enum {
1549 JAVA_THREAD_STATE_NEW = 0,
1550 JAVA_THREAD_STATE_RUNNABLE = 1,
1551 JAVA_THREAD_STATE_BLOCKED = 2,
1552 JAVA_THREAD_STATE_WAITING = 3,
1553 JAVA_THREAD_STATE_TIMED_WAITING = 4,
1554 JAVA_THREAD_STATE_TERMINATED = 5,
1555 JAVA_THREAD_STATE_COUNT = 6
1556 };
1558 /*
1559 * Returns an array of the threadStatus values representing the
1560 * given Java thread state. Returns NULL if the VM version is
1561 * incompatible with the JDK or doesn't support the given
1562 * Java thread state.
1563 */
1564 JNIEXPORT jintArray JNICALL
1565 JVM_GetThreadStateValues(JNIEnv* env, jint javaThreadState);
1567 /*
1568 * Returns an array of the substate names representing the
1569 * given Java thread state. Returns NULL if the VM version is
1570 * incompatible with the JDK or the VM doesn't support
1571 * the given Java thread state.
1572 * values must be the jintArray returned from JVM_GetThreadStateValues
1573 * and javaThreadState.
1574 */
1575 JNIEXPORT jobjectArray JNICALL
1576 JVM_GetThreadStateNames(JNIEnv* env, jint javaThreadState, jintArray values);
1578 /* =========================================================================
1579 * The following defines a private JVM interface that the JDK can query
1580 * for the JVM version and capabilities. sun.misc.Version defines
1581 * the methods for getting the VM version and its capabilities.
1582 *
1583 * When a new bit is added, the following should be updated to provide
1584 * access to the new capability:
1585 * HS: JVM_GetVersionInfo and Abstract_VM_Version class
1586 * SDK: Version class
1587 *
1588 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for
1589 * JVM to query for the JDK version and capabilities.
1590 *
1591 * When a new bit is added, the following should be updated to provide
1592 * access to the new capability:
1593 * HS: JDK_Version class
1594 * SDK: JDK_GetVersionInfo0
1595 *
1596 * ==========================================================================
1597 */
1598 typedef struct {
1599 /* HotSpot Express VM version string:
1600 * <major>.<minor>-bxx[-<identifier>][-<debug_flavor>]
1601 */
1602 unsigned int jvm_version; /* Consists of major.minor.0.build */
1603 unsigned int update_version : 8; /* 0 in HotSpot Express VM */
1604 unsigned int special_update_version : 8; /* 0 in HotSpot Express VM */
1605 unsigned int reserved1 : 16;
1606 unsigned int reserved2;
1608 /* The following bits represents JVM supports that JDK has dependency on.
1609 * JDK can use these bits to determine which JVM version
1610 * and support it has to maintain runtime compatibility.
1611 *
1612 * When a new bit is added in a minor or update release, make sure
1613 * the new bit is also added in the main/baseline.
1614 */
1615 unsigned int is_attachable : 1;
1616 unsigned int is_kernel_jvm : 1;
1617 unsigned int : 30;
1618 unsigned int : 32;
1619 unsigned int : 32;
1620 } jvm_version_info;
1622 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1623 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1624 // Micro version is 0 in HotSpot Express VM (set in jvm.cpp).
1625 #define JVM_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1626 /* Build number is available in all HotSpot Express VM builds.
1627 * It is defined in make/hotspot_version file.
1628 */
1629 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF))
1631 JNIEXPORT void JNICALL
1632 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size);
1634 typedef struct {
1635 // Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx
1636 unsigned int jdk_version; /* Consists of major, minor, micro (n.n.n) */
1637 /* and build number (xx) */
1638 unsigned int update_version : 8; /* Update release version (uu) */
1639 unsigned int special_update_version : 8; /* Special update release version (c)*/
1640 unsigned int reserved1 : 16;
1641 unsigned int reserved2;
1643 /* The following bits represents new JDK supports that VM has dependency on.
1644 * VM implementation can use these bits to determine which JDK version
1645 * and support it has to maintain runtime compatibility.
1646 *
1647 * When a new bit is added in a minor or update release, make sure
1648 * the new bit is also added in the main/baseline.
1649 */
1650 unsigned int thread_park_blocker : 1;
1651 unsigned int : 31;
1652 unsigned int : 32;
1653 unsigned int : 32;
1654 } jdk_version_info;
1656 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1657 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1658 #define JDK_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1660 /* Build number is available only for RE build (i.e. JDK_BUILD_NUMBER is set to bNN)
1661 * It will be zero for internal builds.
1662 */
1663 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF))
1665 /*
1666 * This is the function JDK_GetVersionInfo0 defined in libjava.so
1667 * that is dynamically looked up by JVM.
1668 */
1669 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size);
1671 /*
1672 * This structure is used by the launcher to get the default thread
1673 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1674 * version of 1.1. As it is not supported otherwise, it has been removed
1675 * from jni.h
1676 */
1677 typedef struct JDK1_1InitArgs {
1678 jint version;
1680 char **properties;
1681 jint checkSource;
1682 jint nativeStackSize;
1683 jint javaStackSize;
1684 jint minHeapSize;
1685 jint maxHeapSize;
1686 jint verifyMode;
1687 char *classpath;
1689 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1690 void (JNICALL *exit)(jint code);
1691 void (JNICALL *abort)(void);
1693 jint enableClassGC;
1694 jint enableVerboseGC;
1695 jint disableAsyncGC;
1696 jint verbose;
1697 jboolean debugging;
1698 jint debugPort;
1699 } JDK1_1InitArgs;
1701 #ifdef __cplusplus
1702 } /* extern "C" */
1703 #endif /* __cplusplus */
1705 #endif /* !_JAVASOFT_JVM_H_ */
1707 #endif // SHARE_VM_PRIMS_JVM_H
