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src/share/vm/prims/jvm.h@710a3c8b516e
src/share/vm/prims/jvm.h
Tue, 08 Aug 2017 15:57:29 +0800
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- aoqi
- date
- Tue, 08 Aug 2017 15:57:29 +0800
- changeset 6876
- 710a3c8b516e
- parent 6839
- 1e657b902392
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- f90c822e73f8
- child 7535
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1 /*
2 * Copyright (c) 1997, 2014, 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_aix
39 # include "jvm_aix.h"
40 #endif
41 #ifdef TARGET_OS_FAMILY_bsd
42 # include "jvm_bsd.h"
43 #endif
45 #ifndef _JAVASOFT_JVM_H_
46 #define _JAVASOFT_JVM_H_
48 // HotSpot integration note:
49 //
50 // This file and jvm.h used with the JDK are identical,
51 // except for the three includes removed below
53 // #include <sys/stat.h>
54 // #include "jni.h"
55 // #include "jvm_md.h"
58 #ifdef __cplusplus
59 extern "C" {
60 #endif
62 /*
63 * This file contains additional functions exported from the VM.
64 * These functions are complementary to the standard JNI support.
65 * There are three parts to this file:
66 *
67 * First, this file contains the VM-related functions needed by native
68 * libraries in the standard Java API. For example, the java.lang.Object
69 * class needs VM-level functions that wait for and notify monitors.
70 *
71 * Second, this file contains the functions and constant definitions
72 * needed by the byte code verifier and class file format checker.
73 * These functions allow the verifier and format checker to be written
74 * in a VM-independent way.
75 *
76 * Third, this file contains various I/O and nerwork operations needed
77 * by the standard Java I/O and network APIs.
78 */
80 /*
81 * Bump the version number when either of the following happens:
82 *
83 * 1. There is a change in JVM_* functions.
84 *
85 * 2. There is a change in the contract between VM and Java classes.
86 * For example, if the VM relies on a new private field in Thread
87 * class.
88 */
90 #define JVM_INTERFACE_VERSION 4
92 JNIEXPORT jobjectArray JNICALL
93 JVM_GetMethodParameters(JNIEnv *env, jobject method);
95 JNIEXPORT jint JNICALL
96 JVM_GetInterfaceVersion(void);
98 /*************************************************************************
99 PART 1: Functions for Native Libraries
100 ************************************************************************/
101 /*
102 * java.lang.Object
103 */
104 JNIEXPORT jint JNICALL
105 JVM_IHashCode(JNIEnv *env, jobject obj);
107 JNIEXPORT void JNICALL
108 JVM_MonitorWait(JNIEnv *env, jobject obj, jlong ms);
110 JNIEXPORT void JNICALL
111 JVM_MonitorNotify(JNIEnv *env, jobject obj);
113 JNIEXPORT void JNICALL
114 JVM_MonitorNotifyAll(JNIEnv *env, jobject obj);
116 JNIEXPORT jobject JNICALL
117 JVM_Clone(JNIEnv *env, jobject obj);
119 /*
120 * java.lang.String
121 */
122 JNIEXPORT jstring JNICALL
123 JVM_InternString(JNIEnv *env, jstring str);
125 /*
126 * java.lang.System
127 */
128 JNIEXPORT jlong JNICALL
129 JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored);
131 JNIEXPORT jlong JNICALL
132 JVM_NanoTime(JNIEnv *env, jclass ignored);
134 JNIEXPORT void JNICALL
135 JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos,
136 jobject dst, jint dst_pos, jint length);
138 JNIEXPORT jobject JNICALL
139 JVM_InitProperties(JNIEnv *env, jobject p);
141 /*
142 * java.io.File
143 */
144 JNIEXPORT void JNICALL
145 JVM_OnExit(void (*func)(void));
147 /*
148 * java.lang.Runtime
149 */
150 JNIEXPORT void JNICALL
151 JVM_Exit(jint code);
153 JNIEXPORT void JNICALL
154 JVM_Halt(jint code);
156 JNIEXPORT void JNICALL
157 JVM_GC(void);
159 /* Returns the number of real-time milliseconds that have elapsed since the
160 * least-recently-inspected heap object was last inspected by the garbage
161 * collector.
162 *
163 * For simple stop-the-world collectors this value is just the time
164 * since the most recent collection. For generational collectors it is the
165 * time since the oldest generation was most recently collected. Other
166 * collectors are free to return a pessimistic estimate of the elapsed time, or
167 * simply the time since the last full collection was performed.
168 *
169 * Note that in the presence of reference objects, a given object that is no
170 * longer strongly reachable may have to be inspected multiple times before it
171 * can be reclaimed.
172 */
173 JNIEXPORT jlong JNICALL
174 JVM_MaxObjectInspectionAge(void);
176 JNIEXPORT void JNICALL
177 JVM_TraceInstructions(jboolean on);
179 JNIEXPORT void JNICALL
180 JVM_TraceMethodCalls(jboolean on);
182 JNIEXPORT jlong JNICALL
183 JVM_TotalMemory(void);
185 JNIEXPORT jlong JNICALL
186 JVM_FreeMemory(void);
188 JNIEXPORT jlong JNICALL
189 JVM_MaxMemory(void);
191 JNIEXPORT jint JNICALL
192 JVM_ActiveProcessorCount(void);
194 JNIEXPORT void * JNICALL
195 JVM_LoadLibrary(const char *name);
197 JNIEXPORT void JNICALL
198 JVM_UnloadLibrary(void * handle);
200 JNIEXPORT void * JNICALL
201 JVM_FindLibraryEntry(void *handle, const char *name);
203 JNIEXPORT jboolean JNICALL
204 JVM_IsSupportedJNIVersion(jint version);
206 /*
207 * java.lang.Float and java.lang.Double
208 */
209 JNIEXPORT jboolean JNICALL
210 JVM_IsNaN(jdouble d);
212 /*
213 * java.lang.Throwable
214 */
215 JNIEXPORT void JNICALL
216 JVM_FillInStackTrace(JNIEnv *env, jobject throwable);
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 */
381 #define JVM_CALLER_DEPTH -1
383 /*
384 * Returns the class in which the code invoking the native method
385 * belongs.
386 *
387 * Note that in JDK 1.1, native methods did not create a frame.
388 * In 1.2, they do. Therefore native methods like Class.forName
389 * can no longer look at the current frame for the caller class.
390 */
391 JNIEXPORT jclass JNICALL
392 JVM_GetCallerClass(JNIEnv *env, int n);
394 /*
395 * Find primitive classes
396 * utf: class name
397 */
398 JNIEXPORT jclass JNICALL
399 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
401 /*
402 * Link the class
403 */
404 JNIEXPORT void JNICALL
405 JVM_ResolveClass(JNIEnv *env, jclass cls);
407 /*
408 * Find a class from a given class loader. Throw ClassNotFoundException
409 * or NoClassDefFoundError depending on the value of the last
410 * argument.
411 */
412 JNIEXPORT jclass JNICALL
413 JVM_FindClassFromClassLoader(JNIEnv *env, const char *name, jboolean init,
414 jobject loader, jboolean throwError);
416 /*
417 * Find a class from a boot class loader. Returns NULL if class not found.
418 */
419 JNIEXPORT jclass JNICALL
420 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
422 /*
423 * Find a class from a given class loader. Throws ClassNotFoundException.
424 * name: name of class
425 * init: whether initialization is done
426 * loader: class loader to look up the class. This may not be the same as the caller's
427 * class loader.
428 * caller: initiating class. The initiating class may be null when a security
429 * manager is not installed.
430 */
431 JNIEXPORT jclass JNICALL
432 JVM_FindClassFromCaller(JNIEnv *env, const char *name, jboolean init,
433 jobject loader, jclass caller);
435 /*
436 * Find a class from a given class.
437 */
438 JNIEXPORT jclass JNICALL
439 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
440 jclass from);
442 /* Find a loaded class cached by the VM */
443 JNIEXPORT jclass JNICALL
444 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
446 /* Define a class */
447 JNIEXPORT jclass JNICALL
448 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
449 jsize len, jobject pd);
451 /* Define a class with a source (added in JDK1.5) */
452 JNIEXPORT jclass JNICALL
453 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
454 const jbyte *buf, jsize len, jobject pd,
455 const char *source);
457 /* Define a class with a source with conditional verification (added HSX 14)
458 * -Xverify:all will verify anyway, -Xverify:none will not verify,
459 * -Xverify:remote (default) will obey this conditional
460 * i.e. true = should_verify_class
461 */
462 JNIEXPORT jclass JNICALL
463 JVM_DefineClassWithSourceCond(JNIEnv *env, const char *name,
464 jobject loader, const jbyte *buf,
465 jsize len, jobject pd, const char *source,
466 jboolean verify);
468 /*
469 * Reflection support functions
470 */
472 JNIEXPORT jstring JNICALL
473 JVM_GetClassName(JNIEnv *env, jclass cls);
475 JNIEXPORT jobjectArray JNICALL
476 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
478 JNIEXPORT jobject JNICALL
479 JVM_GetClassLoader(JNIEnv *env, jclass cls);
481 JNIEXPORT jboolean JNICALL
482 JVM_IsInterface(JNIEnv *env, jclass cls);
484 JNIEXPORT jobjectArray JNICALL
485 JVM_GetClassSigners(JNIEnv *env, jclass cls);
487 JNIEXPORT void JNICALL
488 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
490 JNIEXPORT jobject JNICALL
491 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
493 JNIEXPORT jboolean JNICALL
494 JVM_IsArrayClass(JNIEnv *env, jclass cls);
496 JNIEXPORT jboolean JNICALL
497 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
499 JNIEXPORT jclass JNICALL
500 JVM_GetComponentType(JNIEnv *env, jclass cls);
502 JNIEXPORT jint JNICALL
503 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
505 JNIEXPORT jobjectArray JNICALL
506 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
508 JNIEXPORT jclass JNICALL
509 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
511 /* Generics support (JDK 1.5) */
512 JNIEXPORT jstring JNICALL
513 JVM_GetClassSignature(JNIEnv *env, jclass cls);
515 /* Annotations support (JDK 1.5) */
516 JNIEXPORT jbyteArray JNICALL
517 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
519 /* Annotations support (JDK 1.6) */
521 // field is a handle to a java.lang.reflect.Field object
522 JNIEXPORT jbyteArray JNICALL
523 JVM_GetFieldAnnotations(JNIEnv *env, jobject field);
525 // method is a handle to a java.lang.reflect.Method object
526 JNIEXPORT jbyteArray JNICALL
527 JVM_GetMethodAnnotations(JNIEnv *env, jobject method);
529 // method is a handle to a java.lang.reflect.Method object
530 JNIEXPORT jbyteArray JNICALL
531 JVM_GetMethodDefaultAnnotationValue(JNIEnv *env, jobject method);
533 // method is a handle to a java.lang.reflect.Method object
534 JNIEXPORT jbyteArray JNICALL
535 JVM_GetMethodParameterAnnotations(JNIEnv *env, jobject method);
537 /* Type use annotations support (JDK 1.8) */
539 JNIEXPORT jbyteArray JNICALL
540 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls);
542 // field is a handle to a java.lang.reflect.Field object
543 JNIEXPORT jbyteArray JNICALL
544 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field);
546 // method is a handle to a java.lang.reflect.Method object
547 JNIEXPORT jbyteArray JNICALL
548 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method);
550 /*
551 * New (JDK 1.4) reflection implementation
552 */
554 JNIEXPORT jobjectArray JNICALL
555 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
557 JNIEXPORT jobjectArray JNICALL
558 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
560 JNIEXPORT jobjectArray JNICALL
561 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
563 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
564 This returns the access flags for the class as specified in the
565 class file rather than searching the InnerClasses attribute (if
566 present) to find the source-level access flags. Only the values of
567 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
568 valid. */
569 JNIEXPORT jint JNICALL
570 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
572 /*
573 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
574 */
576 JNIEXPORT jobject JNICALL
577 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
579 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
580 (JNIEnv *env, jobject obj, jobject unused);
582 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
583 (JNIEnv *env, jobject obj, jobject unused, jint index);
585 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
586 (JNIEnv *env, jobject obj, jobject unused, jint index);
588 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
589 (JNIEnv *env, jobject obj, jobject unused, jint index);
591 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
592 (JNIEnv *env, jobject obj, jobject unused, jint index);
594 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
595 (JNIEnv *env, jobject obj, jobject unused, jint index);
597 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
598 (JNIEnv *env, jobject obj, jobject unused, jint index);
600 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
601 (JNIEnv *env, jobject obj, jobject unused, jint index);
603 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
604 (JNIEnv *env, jobject obj, jobject unused, jint index);
606 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
607 (JNIEnv *env, jobject obj, jobject unused, jint index);
609 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
610 (JNIEnv *env, jobject obj, jobject unused, jint index);
612 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
613 (JNIEnv *env, jobject obj, jobject unused, jint index);
615 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
616 (JNIEnv *env, jobject obj, jobject unused, jint index);
618 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
619 (JNIEnv *env, jobject obj, jobject unused, jint index);
621 /*
622 * java.security.*
623 */
625 JNIEXPORT jobject JNICALL
626 JVM_DoPrivileged(JNIEnv *env, jclass cls,
627 jobject action, jobject context, jboolean wrapException);
629 JNIEXPORT jobject JNICALL
630 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
632 JNIEXPORT jobject JNICALL
633 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
635 /*
636 * Signal support, used to implement the shutdown sequence. Every VM must
637 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
638 * (^C) and the latter for external termination (kill, system shutdown, etc.).
639 * Other platform-dependent signal values may also be supported.
640 */
642 JNIEXPORT void * JNICALL
643 JVM_RegisterSignal(jint sig, void *handler);
645 JNIEXPORT jboolean JNICALL
646 JVM_RaiseSignal(jint sig);
648 JNIEXPORT jint JNICALL
649 JVM_FindSignal(const char *name);
651 /*
652 * Retrieve the assertion directives for the specified class.
653 */
654 JNIEXPORT jboolean JNICALL
655 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
657 /*
658 * Retrieve the assertion directives from the VM.
659 */
660 JNIEXPORT jobject JNICALL
661 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
663 /*
664 * java.util.concurrent.atomic.AtomicLong
665 */
666 JNIEXPORT jboolean JNICALL
667 JVM_SupportsCX8(void);
669 JNIEXPORT jboolean JNICALL
670 JVM_CX8Field(JNIEnv *env, jobject obj, jfieldID fldID, jlong oldVal, jlong newVal);
672 /*
673 * com.sun.dtrace.jsdt support
674 */
676 #define JVM_TRACING_DTRACE_VERSION 1
678 /*
679 * Structure to pass one probe description to JVM.
680 *
681 * The VM will overwrite the definition of the referenced method with
682 * code that will fire the probe.
683 */
684 typedef struct {
685 jmethodID method;
686 jstring function;
687 jstring name;
688 void* reserved[4]; // for future use
689 } JVM_DTraceProbe;
691 /**
692 * Encapsulates the stability ratings for a DTrace provider field
693 */
694 typedef struct {
695 jint nameStability;
696 jint dataStability;
697 jint dependencyClass;
698 } JVM_DTraceInterfaceAttributes;
700 /*
701 * Structure to pass one provider description to JVM
702 */
703 typedef struct {
704 jstring name;
705 JVM_DTraceProbe* probes;
706 jint probe_count;
707 JVM_DTraceInterfaceAttributes providerAttributes;
708 JVM_DTraceInterfaceAttributes moduleAttributes;
709 JVM_DTraceInterfaceAttributes functionAttributes;
710 JVM_DTraceInterfaceAttributes nameAttributes;
711 JVM_DTraceInterfaceAttributes argsAttributes;
712 void* reserved[4]; // for future use
713 } JVM_DTraceProvider;
715 /*
716 * Get the version number the JVM was built with
717 */
718 JNIEXPORT jint JNICALL
719 JVM_DTraceGetVersion(JNIEnv* env);
721 /*
722 * Register new probe with given signature, return global handle
723 *
724 * The version passed in is the version that the library code was
725 * built with.
726 */
727 JNIEXPORT jlong JNICALL
728 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name,
729 jint providers_count, JVM_DTraceProvider* providers);
731 /*
732 * Check JSDT probe
733 */
734 JNIEXPORT jboolean JNICALL
735 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method);
737 /*
738 * Destroy custom DOF
739 */
740 JNIEXPORT void JNICALL
741 JVM_DTraceDispose(JNIEnv* env, jlong handle);
743 /*
744 * Check to see if DTrace is supported by OS
745 */
746 JNIEXPORT jboolean JNICALL
747 JVM_DTraceIsSupported(JNIEnv* env);
749 /*************************************************************************
750 PART 2: Support for the Verifier and Class File Format Checker
751 ************************************************************************/
752 /*
753 * Return the class name in UTF format. The result is valid
754 * until JVM_ReleaseUTf is called.
755 *
756 * The caller must treat the string as a constant and not modify it
757 * in any way.
758 */
759 JNIEXPORT const char * JNICALL
760 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
762 /*
763 * Returns the constant pool types in the buffer provided by "types."
764 */
765 JNIEXPORT void JNICALL
766 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
768 /*
769 * Returns the number of Constant Pool entries.
770 */
771 JNIEXPORT jint JNICALL
772 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
774 /*
775 * Returns the number of *declared* fields or methods.
776 */
777 JNIEXPORT jint JNICALL
778 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
780 JNIEXPORT jint JNICALL
781 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
783 /*
784 * Returns the CP indexes of exceptions raised by a given method.
785 * Places the result in the given buffer.
786 *
787 * The method is identified by method_index.
788 */
789 JNIEXPORT void JNICALL
790 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
791 unsigned short *exceptions);
792 /*
793 * Returns the number of exceptions raised by a given method.
794 * The method is identified by method_index.
795 */
796 JNIEXPORT jint JNICALL
797 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
799 /*
800 * Returns the byte code sequence of a given method.
801 * Places the result in the given buffer.
802 *
803 * The method is identified by method_index.
804 */
805 JNIEXPORT void JNICALL
806 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
807 unsigned char *code);
809 /*
810 * Returns the length of the byte code sequence of a given method.
811 * The method is identified by method_index.
812 */
813 JNIEXPORT jint JNICALL
814 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
816 /*
817 * A structure used to a capture exception table entry in a Java method.
818 */
819 typedef struct {
820 jint start_pc;
821 jint end_pc;
822 jint handler_pc;
823 jint catchType;
824 } JVM_ExceptionTableEntryType;
826 /*
827 * Returns the exception table entry at entry_index of a given method.
828 * Places the result in the given buffer.
829 *
830 * The method is identified by method_index.
831 */
832 JNIEXPORT void JNICALL
833 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
834 jint entry_index,
835 JVM_ExceptionTableEntryType *entry);
837 /*
838 * Returns the length of the exception table of a given method.
839 * The method is identified by method_index.
840 */
841 JNIEXPORT jint JNICALL
842 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
844 /*
845 * Returns the modifiers of a given field.
846 * The field is identified by field_index.
847 */
848 JNIEXPORT jint JNICALL
849 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
851 /*
852 * Returns the modifiers of a given method.
853 * The method is identified by method_index.
854 */
855 JNIEXPORT jint JNICALL
856 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
858 /*
859 * Returns the number of local variables of a given method.
860 * The method is identified by method_index.
861 */
862 JNIEXPORT jint JNICALL
863 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
865 /*
866 * Returns the number of arguments (including this pointer) of a given method.
867 * The method is identified by method_index.
868 */
869 JNIEXPORT jint JNICALL
870 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
872 /*
873 * Returns the maximum amount of stack (in words) used by a given method.
874 * The method is identified by method_index.
875 */
876 JNIEXPORT jint JNICALL
877 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
879 /*
880 * Is a given method a constructor.
881 * The method is identified by method_index.
882 */
883 JNIEXPORT jboolean JNICALL
884 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
886 /*
887 * Is the given method generated by the VM.
888 * The method is identified by method_index.
889 */
890 JNIEXPORT jboolean JNICALL
891 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index);
893 /*
894 * Returns the name of a given method in UTF format.
895 * The result remains valid until JVM_ReleaseUTF is called.
896 *
897 * The caller must treat the string as a constant and not modify it
898 * in any way.
899 */
900 JNIEXPORT const char * JNICALL
901 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
903 /*
904 * Returns the signature of a given method in UTF format.
905 * The result remains valid until JVM_ReleaseUTF is called.
906 *
907 * The caller must treat the string as a constant and not modify it
908 * in any way.
909 */
910 JNIEXPORT const char * JNICALL
911 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
913 /*
914 * Returns the name of the field refered to at a given constant pool
915 * index.
916 *
917 * The result is in UTF format and remains valid until JVM_ReleaseUTF
918 * is called.
919 *
920 * The caller must treat the string as a constant and not modify it
921 * in any way.
922 */
923 JNIEXPORT const char * JNICALL
924 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
926 /*
927 * Returns the name of the method refered to at a given constant pool
928 * index.
929 *
930 * The result is in UTF format and remains valid until JVM_ReleaseUTF
931 * is called.
932 *
933 * The caller must treat the string as a constant and not modify it
934 * in any way.
935 */
936 JNIEXPORT const char * JNICALL
937 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
939 /*
940 * Returns the signature of the method refered to at a given constant pool
941 * index.
942 *
943 * The result is in UTF format and remains valid until JVM_ReleaseUTF
944 * is called.
945 *
946 * The caller must treat the string as a constant and not modify it
947 * in any way.
948 */
949 JNIEXPORT const char * JNICALL
950 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
952 /*
953 * Returns the signature of the field refered to at a given constant pool
954 * index.
955 *
956 * The result is in UTF format and remains valid until JVM_ReleaseUTF
957 * is called.
958 *
959 * The caller must treat the string as a constant and not modify it
960 * in any way.
961 */
962 JNIEXPORT const char * JNICALL
963 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
965 /*
966 * Returns the class name refered to at a given constant pool index.
967 *
968 * The result is in UTF format and remains valid until JVM_ReleaseUTF
969 * is called.
970 *
971 * The caller must treat the string as a constant and not modify it
972 * in any way.
973 */
974 JNIEXPORT const char * JNICALL
975 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
977 /*
978 * Returns the class name refered to at a given constant pool index.
979 *
980 * The constant pool entry must refer to a CONSTANT_Fieldref.
981 *
982 * The result is in UTF format and remains valid until JVM_ReleaseUTF
983 * is called.
984 *
985 * The caller must treat the string as a constant and not modify it
986 * in any way.
987 */
988 JNIEXPORT const char * JNICALL
989 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
991 /*
992 * Returns the class name refered to at a given constant pool index.
993 *
994 * The constant pool entry must refer to CONSTANT_Methodref or
995 * CONSTANT_InterfaceMethodref.
996 *
997 * The result is in UTF format and remains valid until JVM_ReleaseUTF
998 * is called.
999 *
1000 * The caller must treat the string as a constant and not modify it
1001 * in any way.
1002 */
1003 JNIEXPORT const char * JNICALL
1004 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
1006 /*
1007 * Returns the modifiers of a field in calledClass. The field is
1008 * referred to in class cb at constant pool entry index.
1009 *
1010 * The caller must treat the string as a constant and not modify it
1011 * in any way.
1012 *
1013 * Returns -1 if the field does not exist in calledClass.
1014 */
1015 JNIEXPORT jint JNICALL
1016 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
1018 /*
1019 * Returns the modifiers of a method in calledClass. The method is
1020 * referred to in class cb at constant pool entry index.
1021 *
1022 * Returns -1 if the method does not exist in calledClass.
1023 */
1024 JNIEXPORT jint JNICALL
1025 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
1027 /*
1028 * Releases the UTF string obtained from the VM.
1029 */
1030 JNIEXPORT void JNICALL
1031 JVM_ReleaseUTF(const char *utf);
1033 /*
1034 * Compare if two classes are in the same package.
1035 */
1036 JNIEXPORT jboolean JNICALL
1037 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
1039 /* Constants in class files */
1041 #define JVM_ACC_PUBLIC 0x0001 /* visible to everyone */
1042 #define JVM_ACC_PRIVATE 0x0002 /* visible only to the defining class */
1043 #define JVM_ACC_PROTECTED 0x0004 /* visible to subclasses */
1044 #define JVM_ACC_STATIC 0x0008 /* instance variable is static */
1045 #define JVM_ACC_FINAL 0x0010 /* no further subclassing, overriding */
1046 #define JVM_ACC_SYNCHRONIZED 0x0020 /* wrap method call in monitor lock */
1047 #define JVM_ACC_SUPER 0x0020 /* funky handling of invokespecial */
1048 #define JVM_ACC_VOLATILE 0x0040 /* can not cache in registers */
1049 #define JVM_ACC_BRIDGE 0x0040 /* bridge method generated by compiler */
1050 #define JVM_ACC_TRANSIENT 0x0080 /* not persistent */
1051 #define JVM_ACC_VARARGS 0x0080 /* method declared with variable number of args */
1052 #define JVM_ACC_NATIVE 0x0100 /* implemented in C */
1053 #define JVM_ACC_INTERFACE 0x0200 /* class is an interface */
1054 #define JVM_ACC_ABSTRACT 0x0400 /* no definition provided */
1055 #define JVM_ACC_STRICT 0x0800 /* strict floating point */
1056 #define JVM_ACC_SYNTHETIC 0x1000 /* compiler-generated class, method or field */
1057 #define JVM_ACC_ANNOTATION 0x2000 /* annotation type */
1058 #define JVM_ACC_ENUM 0x4000 /* field is declared as element of enum */
1060 #define JVM_ACC_PUBLIC_BIT 0
1061 #define JVM_ACC_PRIVATE_BIT 1
1062 #define JVM_ACC_PROTECTED_BIT 2
1063 #define JVM_ACC_STATIC_BIT 3
1064 #define JVM_ACC_FINAL_BIT 4
1065 #define JVM_ACC_SYNCHRONIZED_BIT 5
1066 #define JVM_ACC_SUPER_BIT 5
1067 #define JVM_ACC_VOLATILE_BIT 6
1068 #define JVM_ACC_BRIDGE_BIT 6
1069 #define JVM_ACC_TRANSIENT_BIT 7
1070 #define JVM_ACC_VARARGS_BIT 7
1071 #define JVM_ACC_NATIVE_BIT 8
1072 #define JVM_ACC_INTERFACE_BIT 9
1073 #define JVM_ACC_ABSTRACT_BIT 10
1074 #define JVM_ACC_STRICT_BIT 11
1075 #define JVM_ACC_SYNTHETIC_BIT 12
1076 #define JVM_ACC_ANNOTATION_BIT 13
1077 #define JVM_ACC_ENUM_BIT 14
1079 // NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/utilities/ConstantTag.java
1080 enum {
1081 JVM_CONSTANT_Utf8 = 1,
1082 JVM_CONSTANT_Unicode, /* unused */
1083 JVM_CONSTANT_Integer,
1084 JVM_CONSTANT_Float,
1085 JVM_CONSTANT_Long,
1086 JVM_CONSTANT_Double,
1087 JVM_CONSTANT_Class,
1088 JVM_CONSTANT_String,
1089 JVM_CONSTANT_Fieldref,
1090 JVM_CONSTANT_Methodref,
1091 JVM_CONSTANT_InterfaceMethodref,
1092 JVM_CONSTANT_NameAndType,
1093 JVM_CONSTANT_MethodHandle = 15, // JSR 292
1094 JVM_CONSTANT_MethodType = 16, // JSR 292
1095 //JVM_CONSTANT_(unused) = 17, // JSR 292 early drafts only
1096 JVM_CONSTANT_InvokeDynamic = 18, // JSR 292
1097 JVM_CONSTANT_ExternalMax = 18 // Last tag found in classfiles
1098 };
1100 /* JVM_CONSTANT_MethodHandle subtypes */
1101 enum {
1102 JVM_REF_getField = 1,
1103 JVM_REF_getStatic = 2,
1104 JVM_REF_putField = 3,
1105 JVM_REF_putStatic = 4,
1106 JVM_REF_invokeVirtual = 5,
1107 JVM_REF_invokeStatic = 6,
1108 JVM_REF_invokeSpecial = 7,
1109 JVM_REF_newInvokeSpecial = 8,
1110 JVM_REF_invokeInterface = 9
1111 };
1113 /* Used in the newarray instruction. */
1115 #define JVM_T_BOOLEAN 4
1116 #define JVM_T_CHAR 5
1117 #define JVM_T_FLOAT 6
1118 #define JVM_T_DOUBLE 7
1119 #define JVM_T_BYTE 8
1120 #define JVM_T_SHORT 9
1121 #define JVM_T_INT 10
1122 #define JVM_T_LONG 11
1124 /* JVM method signatures */
1126 #define JVM_SIGNATURE_ARRAY '['
1127 #define JVM_SIGNATURE_BYTE 'B'
1128 #define JVM_SIGNATURE_CHAR 'C'
1129 #define JVM_SIGNATURE_CLASS 'L'
1130 #define JVM_SIGNATURE_ENDCLASS ';'
1131 #define JVM_SIGNATURE_ENUM 'E'
1132 #define JVM_SIGNATURE_FLOAT 'F'
1133 #define JVM_SIGNATURE_DOUBLE 'D'
1134 #define JVM_SIGNATURE_FUNC '('
1135 #define JVM_SIGNATURE_ENDFUNC ')'
1136 #define JVM_SIGNATURE_INT 'I'
1137 #define JVM_SIGNATURE_LONG 'J'
1138 #define JVM_SIGNATURE_SHORT 'S'
1139 #define JVM_SIGNATURE_VOID 'V'
1140 #define JVM_SIGNATURE_BOOLEAN 'Z'
1142 /*
1143 * A function defined by the byte-code verifier and called by the VM.
1144 * This is not a function implemented in the VM.
1145 *
1146 * Returns JNI_FALSE if verification fails. A detailed error message
1147 * will be places in msg_buf, whose length is specified by buf_len.
1148 */
1149 typedef jboolean (*verifier_fn_t)(JNIEnv *env,
1150 jclass cb,
1151 char * msg_buf,
1152 jint buf_len);
1155 /*
1156 * Support for a VM-independent class format checker.
1157 */
1158 typedef struct {
1159 unsigned long code; /* byte code */
1160 unsigned long excs; /* exceptions */
1161 unsigned long etab; /* catch table */
1162 unsigned long lnum; /* line number */
1163 unsigned long lvar; /* local vars */
1164 } method_size_info;
1166 typedef struct {
1167 unsigned int constants; /* constant pool */
1168 unsigned int fields;
1169 unsigned int methods;
1170 unsigned int interfaces;
1171 unsigned int fields2; /* number of static 2-word fields */
1172 unsigned int innerclasses; /* # of records in InnerClasses attr */
1174 method_size_info clinit; /* memory used in clinit */
1175 method_size_info main; /* used everywhere else */
1176 } class_size_info;
1178 /*
1179 * Functions defined in libjava.so to perform string conversions.
1180 *
1181 */
1183 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str);
1185 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b);
1187 /* This is the function defined in libjava.so that performs class
1188 * format checks. This functions fills in size information about
1189 * the class file and returns:
1190 *
1191 * 0: good
1192 * -1: out of memory
1193 * -2: bad format
1194 * -3: unsupported version
1195 * -4: bad class name
1196 */
1198 typedef jint (*check_format_fn_t)(char *class_name,
1199 unsigned char *data,
1200 unsigned int data_size,
1201 class_size_info *class_size,
1202 char *message_buffer,
1203 jint buffer_length,
1204 jboolean measure_only,
1205 jboolean check_relaxed);
1207 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1208 JVM_ACC_FINAL | \
1209 JVM_ACC_SUPER | \
1210 JVM_ACC_INTERFACE | \
1211 JVM_ACC_ABSTRACT | \
1212 JVM_ACC_ANNOTATION | \
1213 JVM_ACC_ENUM | \
1214 JVM_ACC_SYNTHETIC)
1216 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1217 JVM_ACC_PRIVATE | \
1218 JVM_ACC_PROTECTED | \
1219 JVM_ACC_STATIC | \
1220 JVM_ACC_FINAL | \
1221 JVM_ACC_VOLATILE | \
1222 JVM_ACC_TRANSIENT | \
1223 JVM_ACC_ENUM | \
1224 JVM_ACC_SYNTHETIC)
1226 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1227 JVM_ACC_PRIVATE | \
1228 JVM_ACC_PROTECTED | \
1229 JVM_ACC_STATIC | \
1230 JVM_ACC_FINAL | \
1231 JVM_ACC_SYNCHRONIZED | \
1232 JVM_ACC_BRIDGE | \
1233 JVM_ACC_VARARGS | \
1234 JVM_ACC_NATIVE | \
1235 JVM_ACC_ABSTRACT | \
1236 JVM_ACC_STRICT | \
1237 JVM_ACC_SYNTHETIC)
1239 /*
1240 * This is the function defined in libjava.so to perform path
1241 * canonicalization. VM call this function before opening jar files
1242 * to load system classes.
1243 *
1244 */
1246 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len);
1248 /*************************************************************************
1249 PART 3: I/O and Network Support
1250 ************************************************************************/
1252 /* Note that the JVM IO functions are expected to return JVM_IO_ERR
1253 * when there is any kind of error. The caller can then use the
1254 * platform specific support (e.g., errno) to get the detailed
1255 * error info. The JVM_GetLastErrorString procedure may also be used
1256 * to obtain a descriptive error string.
1257 */
1258 #define JVM_IO_ERR (-1)
1260 /* For interruptible IO. Returning JVM_IO_INTR indicates that an IO
1261 * operation has been disrupted by Thread.interrupt. There are a
1262 * number of technical difficulties related to interruptible IO that
1263 * need to be solved. For example, most existing programs do not handle
1264 * InterruptedIOExceptions specially, they simply treat those as any
1265 * IOExceptions, which typically indicate fatal errors.
1266 *
1267 * There are also two modes of operation for interruptible IO. In the
1268 * resumption mode, an interrupted IO operation is guaranteed not to
1269 * have any side-effects, and can be restarted. In the termination mode,
1270 * an interrupted IO operation corrupts the underlying IO stream, so
1271 * that the only reasonable operation on an interrupted stream is to
1272 * close that stream. The resumption mode seems to be impossible to
1273 * implement on Win32 and Solaris. Implementing the termination mode is
1274 * easier, but it's not clear that's the right semantics.
1275 *
1276 * Interruptible IO is not supported on Win32.It can be enabled/disabled
1277 * using a compile-time flag on Solaris. Third-party JVM ports do not
1278 * need to implement interruptible IO.
1279 */
1280 #define JVM_IO_INTR (-2)
1282 /* Write a string into the given buffer, in the platform's local encoding,
1283 * that describes the most recent system-level error to occur in this thread.
1284 * Return the length of the string or zero if no error occurred.
1285 */
1286 JNIEXPORT jint JNICALL
1287 JVM_GetLastErrorString(char *buf, int len);
1289 /*
1290 * Convert a pathname into native format. This function does syntactic
1291 * cleanup, such as removing redundant separator characters. It modifies
1292 * the given pathname string in place.
1293 */
1294 JNIEXPORT char * JNICALL
1295 JVM_NativePath(char *);
1297 /*
1298 * JVM I/O error codes
1299 */
1300 #define JVM_EEXIST -100
1302 /*
1303 * Open a file descriptor. This function returns a negative error code
1304 * on error, and a non-negative integer that is the file descriptor on
1305 * success.
1306 */
1307 JNIEXPORT jint JNICALL
1308 JVM_Open(const char *fname, jint flags, jint mode);
1310 /*
1311 * Close a file descriptor. This function returns -1 on error, and 0
1312 * on success.
1313 *
1314 * fd the file descriptor to close.
1315 */
1316 JNIEXPORT jint JNICALL
1317 JVM_Close(jint fd);
1319 /*
1320 * Read data from a file decriptor into a char array.
1321 *
1322 * fd the file descriptor to read from.
1323 * buf the buffer where to put the read data.
1324 * nbytes the number of bytes to read.
1325 *
1326 * This function returns -1 on error, and 0 on success.
1327 */
1328 JNIEXPORT jint JNICALL
1329 JVM_Read(jint fd, char *buf, jint nbytes);
1331 /*
1332 * Write data from a char array to a file decriptor.
1333 *
1334 * fd the file descriptor to read from.
1335 * buf the buffer from which to fetch the data.
1336 * nbytes the number of bytes to write.
1337 *
1338 * This function returns -1 on error, and 0 on success.
1339 */
1340 JNIEXPORT jint JNICALL
1341 JVM_Write(jint fd, char *buf, jint nbytes);
1343 /*
1344 * Returns the number of bytes available for reading from a given file
1345 * descriptor
1346 */
1347 JNIEXPORT jint JNICALL
1348 JVM_Available(jint fd, jlong *pbytes);
1350 /*
1351 * Move the file descriptor pointer from whence by offset.
1352 *
1353 * fd the file descriptor to move.
1354 * offset the number of bytes to move it by.
1355 * whence the start from where to move it.
1356 *
1357 * This function returns the resulting pointer location.
1358 */
1359 JNIEXPORT jlong JNICALL
1360 JVM_Lseek(jint fd, jlong offset, jint whence);
1362 /*
1363 * Set the length of the file associated with the given descriptor to the given
1364 * length. If the new length is longer than the current length then the file
1365 * is extended; the contents of the extended portion are not defined. The
1366 * value of the file pointer is undefined after this procedure returns.
1367 */
1368 JNIEXPORT jint JNICALL
1369 JVM_SetLength(jint fd, jlong length);
1371 /*
1372 * Synchronize the file descriptor's in memory state with that of the
1373 * physical device. Return of -1 is an error, 0 is OK.
1374 */
1375 JNIEXPORT jint JNICALL
1376 JVM_Sync(jint fd);
1378 /*
1379 * Networking library support
1380 */
1382 JNIEXPORT jint JNICALL
1383 JVM_InitializeSocketLibrary(void);
1385 struct sockaddr;
1387 JNIEXPORT jint JNICALL
1388 JVM_Socket(jint domain, jint type, jint protocol);
1390 JNIEXPORT jint JNICALL
1391 JVM_SocketClose(jint fd);
1393 JNIEXPORT jint JNICALL
1394 JVM_SocketShutdown(jint fd, jint howto);
1396 JNIEXPORT jint JNICALL
1397 JVM_Recv(jint fd, char *buf, jint nBytes, jint flags);
1399 JNIEXPORT jint JNICALL
1400 JVM_Send(jint fd, char *buf, jint nBytes, jint flags);
1402 JNIEXPORT jint JNICALL
1403 JVM_Timeout(int fd, long timeout);
1405 JNIEXPORT jint JNICALL
1406 JVM_Listen(jint fd, jint count);
1408 JNIEXPORT jint JNICALL
1409 JVM_Connect(jint fd, struct sockaddr *him, jint len);
1411 JNIEXPORT jint JNICALL
1412 JVM_Bind(jint fd, struct sockaddr *him, jint len);
1414 JNIEXPORT jint JNICALL
1415 JVM_Accept(jint fd, struct sockaddr *him, jint *len);
1417 JNIEXPORT jint JNICALL
1418 JVM_RecvFrom(jint fd, char *buf, int nBytes,
1419 int flags, struct sockaddr *from, int *fromlen);
1421 JNIEXPORT jint JNICALL
1422 JVM_SendTo(jint fd, char *buf, int len,
1423 int flags, struct sockaddr *to, int tolen);
1425 JNIEXPORT jint JNICALL
1426 JVM_SocketAvailable(jint fd, jint *result);
1429 JNIEXPORT jint JNICALL
1430 JVM_GetSockName(jint fd, struct sockaddr *him, int *len);
1432 JNIEXPORT jint JNICALL
1433 JVM_GetSockOpt(jint fd, int level, int optname, char *optval, int *optlen);
1435 JNIEXPORT jint JNICALL
1436 JVM_SetSockOpt(jint fd, int level, int optname, const char *optval, int optlen);
1438 JNIEXPORT int JNICALL
1439 JVM_GetHostName(char* name, int namelen);
1441 /*
1442 * The standard printing functions supported by the Java VM. (Should they
1443 * be renamed to JVM_* in the future?
1444 */
1446 /*
1447 * BE CAREFUL! The following functions do not implement the
1448 * full feature set of standard C printf formats.
1449 */
1450 JNIEXPORT int
1451 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1453 JNIEXPORT int
1454 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1456 JNIEXPORT int
1457 jio_fprintf(FILE *, const char *fmt, ...);
1459 JNIEXPORT int
1460 jio_vfprintf(FILE *, const char *fmt, va_list args);
1463 JNIEXPORT void * JNICALL
1464 JVM_RawMonitorCreate(void);
1466 JNIEXPORT void JNICALL
1467 JVM_RawMonitorDestroy(void *mon);
1469 JNIEXPORT jint JNICALL
1470 JVM_RawMonitorEnter(void *mon);
1472 JNIEXPORT void JNICALL
1473 JVM_RawMonitorExit(void *mon);
1475 /*
1476 * java.lang.reflect.Method
1477 */
1478 JNIEXPORT jobject JNICALL
1479 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
1481 /*
1482 * java.lang.reflect.Constructor
1483 */
1484 JNIEXPORT jobject JNICALL
1485 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
1487 /*
1488 * java.lang.management support
1489 */
1490 JNIEXPORT void* JNICALL
1491 JVM_GetManagement(jint version);
1493 /*
1494 * com.sun.tools.attach.VirtualMachine support
1495 *
1496 * Initialize the agent properties with the properties maintained in the VM.
1497 */
1498 JNIEXPORT jobject JNICALL
1499 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1501 JNIEXPORT jstring JNICALL
1502 JVM_GetTemporaryDirectory(JNIEnv *env);
1504 /* Generics reflection support.
1505 *
1506 * Returns information about the given class's EnclosingMethod
1507 * attribute, if present, or null if the class had no enclosing
1508 * method.
1509 *
1510 * If non-null, the returned array contains three elements. Element 0
1511 * is the java.lang.Class of which the enclosing method is a member,
1512 * and elements 1 and 2 are the java.lang.Strings for the enclosing
1513 * method's name and descriptor, respectively.
1514 */
1515 JNIEXPORT jobjectArray JNICALL
1516 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1518 /*
1519 * Java thread state support
1520 */
1521 enum {
1522 JAVA_THREAD_STATE_NEW = 0,
1523 JAVA_THREAD_STATE_RUNNABLE = 1,
1524 JAVA_THREAD_STATE_BLOCKED = 2,
1525 JAVA_THREAD_STATE_WAITING = 3,
1526 JAVA_THREAD_STATE_TIMED_WAITING = 4,
1527 JAVA_THREAD_STATE_TERMINATED = 5,
1528 JAVA_THREAD_STATE_COUNT = 6
1529 };
1531 /*
1532 * Returns an array of the threadStatus values representing the
1533 * given Java thread state. Returns NULL if the VM version is
1534 * incompatible with the JDK or doesn't support the given
1535 * Java thread state.
1536 */
1537 JNIEXPORT jintArray JNICALL
1538 JVM_GetThreadStateValues(JNIEnv* env, jint javaThreadState);
1540 /*
1541 * Returns an array of the substate names representing the
1542 * given Java thread state. Returns NULL if the VM version is
1543 * incompatible with the JDK or the VM doesn't support
1544 * the given Java thread state.
1545 * values must be the jintArray returned from JVM_GetThreadStateValues
1546 * and javaThreadState.
1547 */
1548 JNIEXPORT jobjectArray JNICALL
1549 JVM_GetThreadStateNames(JNIEnv* env, jint javaThreadState, jintArray values);
1551 /* =========================================================================
1552 * The following defines a private JVM interface that the JDK can query
1553 * for the JVM version and capabilities. sun.misc.Version defines
1554 * the methods for getting the VM version and its capabilities.
1555 *
1556 * When a new bit is added, the following should be updated to provide
1557 * access to the new capability:
1558 * HS: JVM_GetVersionInfo and Abstract_VM_Version class
1559 * SDK: Version class
1560 *
1561 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for
1562 * JVM to query for the JDK version and capabilities.
1563 *
1564 * When a new bit is added, the following should be updated to provide
1565 * access to the new capability:
1566 * HS: JDK_Version class
1567 * SDK: JDK_GetVersionInfo0
1568 *
1569 * ==========================================================================
1570 */
1571 typedef struct {
1572 /* HotSpot Express VM version string:
1573 * <major>.<minor>-bxx[-<identifier>][-<debug_flavor>]
1574 */
1575 unsigned int jvm_version; /* Consists of major.minor.0.build */
1576 unsigned int update_version : 8; /* 0 in HotSpot Express VM */
1577 unsigned int special_update_version : 8; /* 0 in HotSpot Express VM */
1578 unsigned int reserved1 : 16;
1579 unsigned int reserved2;
1581 /* The following bits represents JVM supports that JDK has dependency on.
1582 * JDK can use these bits to determine which JVM version
1583 * and support it has to maintain runtime compatibility.
1584 *
1585 * When a new bit is added in a minor or update release, make sure
1586 * the new bit is also added in the main/baseline.
1587 */
1588 unsigned int is_attachable : 1;
1589 unsigned int : 31;
1590 unsigned int : 32;
1591 unsigned int : 32;
1592 } jvm_version_info;
1594 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1595 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1596 // Micro version is 0 in HotSpot Express VM (set in jvm.cpp).
1597 #define JVM_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1598 /* Build number is available in all HotSpot Express VM builds.
1599 * It is defined in make/hotspot_version file.
1600 */
1601 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF))
1603 JNIEXPORT void JNICALL
1604 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size);
1606 typedef struct {
1607 // Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx
1608 unsigned int jdk_version; /* Consists of major, minor, micro (n.n.n) */
1609 /* and build number (xx) */
1610 unsigned int update_version : 8; /* Update release version (uu) */
1611 unsigned int special_update_version : 8; /* Special update release version (c)*/
1612 unsigned int reserved1 : 16;
1613 unsigned int reserved2;
1615 /* The following bits represents new JDK supports that VM has dependency on.
1616 * VM implementation can use these bits to determine which JDK version
1617 * and support it has to maintain runtime compatibility.
1618 *
1619 * When a new bit is added in a minor or update release, make sure
1620 * the new bit is also added in the main/baseline.
1621 */
1622 unsigned int thread_park_blocker : 1;
1623 unsigned int post_vm_init_hook_enabled : 1;
1624 unsigned int pending_list_uses_discovered_field : 1;
1625 unsigned int : 29;
1626 unsigned int : 32;
1627 unsigned int : 32;
1628 } jdk_version_info;
1630 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1631 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1632 #define JDK_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1634 /* Build number is available only for RE build (i.e. JDK_BUILD_NUMBER is set to bNN)
1635 * It will be zero for internal builds.
1636 */
1637 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF))
1639 /*
1640 * This is the function JDK_GetVersionInfo0 defined in libjava.so
1641 * that is dynamically looked up by JVM.
1642 */
1643 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size);
1645 /*
1646 * This structure is used by the launcher to get the default thread
1647 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1648 * version of 1.1. As it is not supported otherwise, it has been removed
1649 * from jni.h
1650 */
1651 typedef struct JDK1_1InitArgs {
1652 jint version;
1654 char **properties;
1655 jint checkSource;
1656 jint nativeStackSize;
1657 jint javaStackSize;
1658 jint minHeapSize;
1659 jint maxHeapSize;
1660 jint verifyMode;
1661 char *classpath;
1663 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1664 void (JNICALL *exit)(jint code);
1665 void (JNICALL *abort)(void);
1667 jint enableClassGC;
1668 jint enableVerboseGC;
1669 jint disableAsyncGC;
1670 jint verbose;
1671 jboolean debugging;
1672 jint debugPort;
1673 } JDK1_1InitArgs;
1675 #ifdef __cplusplus
1676 } /* extern "C" */
1677 #endif /* __cplusplus */
1679 #endif /* !_JAVASOFT_JVM_H_ */
1681 #endif // SHARE_VM_PRIMS_JVM_H
