Mercurial > jdk8-mips64-public > hotspot / file revision
src/share/vm/prims/jvm.h@21444610cb92
src/share/vm/prims/jvm.h
Thu, 08 May 2014 17:19:49 -0400
- author
- coleenp
- date
- Thu, 08 May 2014 17:19:49 -0400
- changeset 6823
- 21444610cb92
- parent 5849
- 615d83933195
- child 6830
- 54bc75c144b0
- permissions
- -rw-r--r--
8015256: Better class accessibility
Summary: Improve protection domain check in forName()
Reviewed-by: mchung, acorn, jdn
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_bsd
39 # include "jvm_bsd.h"
40 #endif
42 #ifndef _JAVASOFT_JVM_H_
43 #define _JAVASOFT_JVM_H_
45 // HotSpot integration note:
46 //
47 // This file and jvm.h used with the JDK are identical,
48 // except for the three includes removed below
50 // #include <sys/stat.h>
51 // #include "jni.h"
52 // #include "jvm_md.h"
55 #ifdef __cplusplus
56 extern "C" {
57 #endif
59 /*
60 * This file contains additional functions exported from the VM.
61 * These functions are complementary to the standard JNI support.
62 * There are three parts to this file:
63 *
64 * First, this file contains the VM-related functions needed by native
65 * libraries in the standard Java API. For example, the java.lang.Object
66 * class needs VM-level functions that wait for and notify monitors.
67 *
68 * Second, this file contains the functions and constant definitions
69 * needed by the byte code verifier and class file format checker.
70 * These functions allow the verifier and format checker to be written
71 * in a VM-independent way.
72 *
73 * Third, this file contains various I/O and nerwork operations needed
74 * by the standard Java I/O and network APIs.
75 */
77 /*
78 * Bump the version number when either of the following happens:
79 *
80 * 1. There is a change in JVM_* functions.
81 *
82 * 2. There is a change in the contract between VM and Java classes.
83 * For example, if the VM relies on a new private field in Thread
84 * class.
85 */
87 #define JVM_INTERFACE_VERSION 4
89 JNIEXPORT jobjectArray JNICALL
90 JVM_GetMethodParameters(JNIEnv *env, jobject method);
92 JNIEXPORT jint JNICALL
93 JVM_GetInterfaceVersion(void);
95 /*************************************************************************
96 PART 1: Functions for Native Libraries
97 ************************************************************************/
98 /*
99 * java.lang.Object
100 */
101 JNIEXPORT jint JNICALL
102 JVM_IHashCode(JNIEnv *env, jobject obj);
104 JNIEXPORT void JNICALL
105 JVM_MonitorWait(JNIEnv *env, jobject obj, jlong ms);
107 JNIEXPORT void JNICALL
108 JVM_MonitorNotify(JNIEnv *env, jobject obj);
110 JNIEXPORT void JNICALL
111 JVM_MonitorNotifyAll(JNIEnv *env, jobject obj);
113 JNIEXPORT jobject JNICALL
114 JVM_Clone(JNIEnv *env, jobject obj);
116 /*
117 * java.lang.String
118 */
119 JNIEXPORT jstring JNICALL
120 JVM_InternString(JNIEnv *env, jstring str);
122 /*
123 * java.lang.System
124 */
125 JNIEXPORT jlong JNICALL
126 JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored);
128 JNIEXPORT jlong JNICALL
129 JVM_NanoTime(JNIEnv *env, jclass ignored);
131 JNIEXPORT void JNICALL
132 JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos,
133 jobject dst, jint dst_pos, jint length);
135 JNIEXPORT jobject JNICALL
136 JVM_InitProperties(JNIEnv *env, jobject p);
138 /*
139 * java.io.File
140 */
141 JNIEXPORT void JNICALL
142 JVM_OnExit(void (*func)(void));
144 /*
145 * java.lang.Runtime
146 */
147 JNIEXPORT void JNICALL
148 JVM_Exit(jint code);
150 JNIEXPORT void JNICALL
151 JVM_Halt(jint code);
153 JNIEXPORT void JNICALL
154 JVM_GC(void);
156 /* Returns the number of real-time milliseconds that have elapsed since the
157 * least-recently-inspected heap object was last inspected by the garbage
158 * collector.
159 *
160 * For simple stop-the-world collectors this value is just the time
161 * since the most recent collection. For generational collectors it is the
162 * time since the oldest generation was most recently collected. Other
163 * collectors are free to return a pessimistic estimate of the elapsed time, or
164 * simply the time since the last full collection was performed.
165 *
166 * Note that in the presence of reference objects, a given object that is no
167 * longer strongly reachable may have to be inspected multiple times before it
168 * can be reclaimed.
169 */
170 JNIEXPORT jlong JNICALL
171 JVM_MaxObjectInspectionAge(void);
173 JNIEXPORT void JNICALL
174 JVM_TraceInstructions(jboolean on);
176 JNIEXPORT void JNICALL
177 JVM_TraceMethodCalls(jboolean on);
179 JNIEXPORT jlong JNICALL
180 JVM_TotalMemory(void);
182 JNIEXPORT jlong JNICALL
183 JVM_FreeMemory(void);
185 JNIEXPORT jlong JNICALL
186 JVM_MaxMemory(void);
188 JNIEXPORT jint JNICALL
189 JVM_ActiveProcessorCount(void);
191 JNIEXPORT void * JNICALL
192 JVM_LoadLibrary(const char *name);
194 JNIEXPORT void JNICALL
195 JVM_UnloadLibrary(void * handle);
197 JNIEXPORT void * JNICALL
198 JVM_FindLibraryEntry(void *handle, const char *name);
200 JNIEXPORT jboolean JNICALL
201 JVM_IsSupportedJNIVersion(jint version);
203 /*
204 * java.lang.Float and java.lang.Double
205 */
206 JNIEXPORT jboolean JNICALL
207 JVM_IsNaN(jdouble d);
209 /*
210 * java.lang.Throwable
211 */
212 JNIEXPORT void JNICALL
213 JVM_FillInStackTrace(JNIEnv *env, jobject throwable);
215 JNIEXPORT 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 JNIEXPORT void JNICALL
294 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name);
296 /* getStackTrace() and getAllStackTraces() method */
297 JNIEXPORT jobjectArray JNICALL
298 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);
300 /*
301 * java.lang.SecurityManager
302 */
303 JNIEXPORT jclass JNICALL
304 JVM_CurrentLoadedClass(JNIEnv *env);
306 JNIEXPORT jobject JNICALL
307 JVM_CurrentClassLoader(JNIEnv *env);
309 JNIEXPORT jobjectArray JNICALL
310 JVM_GetClassContext(JNIEnv *env);
312 JNIEXPORT jint JNICALL
313 JVM_ClassDepth(JNIEnv *env, jstring name);
315 JNIEXPORT jint JNICALL
316 JVM_ClassLoaderDepth(JNIEnv *env);
318 /*
319 * java.lang.Package
320 */
321 JNIEXPORT jstring JNICALL
322 JVM_GetSystemPackage(JNIEnv *env, jstring name);
324 JNIEXPORT jobjectArray JNICALL
325 JVM_GetSystemPackages(JNIEnv *env);
327 /*
328 * java.io.ObjectInputStream
329 */
330 JNIEXPORT jobject JNICALL
331 JVM_AllocateNewObject(JNIEnv *env, jobject obj, jclass currClass,
332 jclass initClass);
334 JNIEXPORT jobject JNICALL
335 JVM_AllocateNewArray(JNIEnv *env, jobject obj, jclass currClass,
336 jint length);
338 JNIEXPORT jobject JNICALL
339 JVM_LatestUserDefinedLoader(JNIEnv *env);
341 /*
342 * This function has been deprecated and should not be considered
343 * part of the specified JVM interface.
344 */
345 JNIEXPORT jclass JNICALL
346 JVM_LoadClass0(JNIEnv *env, jobject obj, jclass currClass,
347 jstring currClassName);
349 /*
350 * java.lang.reflect.Array
351 */
352 JNIEXPORT jint JNICALL
353 JVM_GetArrayLength(JNIEnv *env, jobject arr);
355 JNIEXPORT jobject JNICALL
356 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);
358 JNIEXPORT jvalue JNICALL
359 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);
361 JNIEXPORT void JNICALL
362 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);
364 JNIEXPORT void JNICALL
365 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,
366 unsigned char vCode);
368 JNIEXPORT jobject JNICALL
369 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);
371 JNIEXPORT jobject JNICALL
372 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);
374 /*
375 * java.lang.Class and java.lang.ClassLoader
376 */
378 #define JVM_CALLER_DEPTH -1
380 /*
381 * Returns the class in which the code invoking the native method
382 * belongs.
383 *
384 * Note that in JDK 1.1, native methods did not create a frame.
385 * In 1.2, they do. Therefore native methods like Class.forName
386 * can no longer look at the current frame for the caller class.
387 */
388 JNIEXPORT jclass JNICALL
389 JVM_GetCallerClass(JNIEnv *env, int n);
391 /*
392 * Find primitive classes
393 * utf: class name
394 */
395 JNIEXPORT jclass JNICALL
396 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);
398 /*
399 * Link the class
400 */
401 JNIEXPORT void JNICALL
402 JVM_ResolveClass(JNIEnv *env, jclass cls);
404 /*
405 * Find a class from a given class loader. Throw ClassNotFoundException
406 * or NoClassDefFoundError depending on the value of the last
407 * argument.
408 */
409 JNIEXPORT jclass JNICALL
410 JVM_FindClassFromClassLoader(JNIEnv *env, const char *name, jboolean init,
411 jobject loader, jboolean throwError);
413 /*
414 * Find a class from a boot class loader. Returns NULL if class not found.
415 */
416 JNIEXPORT jclass JNICALL
417 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);
419 /*
420 * Find a class from a given class loader. Throws ClassNotFoundException.
421 * name: name of class
422 * init: whether initialization is done
423 * loader: class loader to look up the class. This may not be the same as the caller's
424 * class loader.
425 * caller: initiating class. The initiating class may be null when a security
426 * manager is not installed.
427 */
428 JNIEXPORT jclass JNICALL
429 JVM_FindClassFromCaller(JNIEnv *env, const char *name, jboolean init,
430 jobject loader, jclass caller);
432 /*
433 * Find a class from a given class.
434 */
435 JNIEXPORT jclass JNICALL
436 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
437 jclass from);
439 /* Find a loaded class cached by the VM */
440 JNIEXPORT jclass JNICALL
441 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
443 /* Define a class */
444 JNIEXPORT jclass JNICALL
445 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
446 jsize len, jobject pd);
448 /* Define a class with a source (added in JDK1.5) */
449 JNIEXPORT jclass JNICALL
450 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
451 const jbyte *buf, jsize len, jobject pd,
452 const char *source);
454 /* Define a class with a source with conditional verification (added HSX 14)
455 * -Xverify:all will verify anyway, -Xverify:none will not verify,
456 * -Xverify:remote (default) will obey this conditional
457 * i.e. true = should_verify_class
458 */
459 JNIEXPORT jclass JNICALL
460 JVM_DefineClassWithSourceCond(JNIEnv *env, const char *name,
461 jobject loader, const jbyte *buf,
462 jsize len, jobject pd, const char *source,
463 jboolean verify);
465 /*
466 * Reflection support functions
467 */
469 JNIEXPORT jstring JNICALL
470 JVM_GetClassName(JNIEnv *env, jclass cls);
472 JNIEXPORT jobjectArray JNICALL
473 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
475 JNIEXPORT jobject JNICALL
476 JVM_GetClassLoader(JNIEnv *env, jclass cls);
478 JNIEXPORT jboolean JNICALL
479 JVM_IsInterface(JNIEnv *env, jclass cls);
481 JNIEXPORT jobjectArray JNICALL
482 JVM_GetClassSigners(JNIEnv *env, jclass cls);
484 JNIEXPORT void JNICALL
485 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
487 JNIEXPORT jobject JNICALL
488 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
490 JNIEXPORT jboolean JNICALL
491 JVM_IsArrayClass(JNIEnv *env, jclass cls);
493 JNIEXPORT jboolean JNICALL
494 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
496 JNIEXPORT jclass JNICALL
497 JVM_GetComponentType(JNIEnv *env, jclass cls);
499 JNIEXPORT jint JNICALL
500 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
502 JNIEXPORT jobjectArray JNICALL
503 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
505 JNIEXPORT jclass JNICALL
506 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
508 /* Generics support (JDK 1.5) */
509 JNIEXPORT jstring JNICALL
510 JVM_GetClassSignature(JNIEnv *env, jclass cls);
512 /* Annotations support (JDK 1.5) */
513 JNIEXPORT jbyteArray JNICALL
514 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
516 /* Annotations support (JDK 1.6) */
518 // field is a handle to a java.lang.reflect.Field object
519 JNIEXPORT jbyteArray JNICALL
520 JVM_GetFieldAnnotations(JNIEnv *env, jobject field);
522 // method is a handle to a java.lang.reflect.Method object
523 JNIEXPORT jbyteArray JNICALL
524 JVM_GetMethodAnnotations(JNIEnv *env, jobject method);
526 // method is a handle to a java.lang.reflect.Method object
527 JNIEXPORT jbyteArray JNICALL
528 JVM_GetMethodDefaultAnnotationValue(JNIEnv *env, jobject method);
530 // method is a handle to a java.lang.reflect.Method object
531 JNIEXPORT jbyteArray JNICALL
532 JVM_GetMethodParameterAnnotations(JNIEnv *env, jobject method);
534 /* Type use annotations support (JDK 1.8) */
536 JNIEXPORT jbyteArray JNICALL
537 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls);
539 // field is a handle to a java.lang.reflect.Field object
540 JNIEXPORT jbyteArray JNICALL
541 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field);
543 // method is a handle to a java.lang.reflect.Method object
544 JNIEXPORT jbyteArray JNICALL
545 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method);
547 /*
548 * New (JDK 1.4) reflection implementation
549 */
551 JNIEXPORT jobjectArray JNICALL
552 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
554 JNIEXPORT jobjectArray JNICALL
555 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
557 JNIEXPORT jobjectArray JNICALL
558 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
560 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
561 This returns the access flags for the class as specified in the
562 class file rather than searching the InnerClasses attribute (if
563 present) to find the source-level access flags. Only the values of
564 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
565 valid. */
566 JNIEXPORT jint JNICALL
567 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
569 /*
570 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
571 */
573 JNIEXPORT jobject JNICALL
574 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
576 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
577 (JNIEnv *env, jobject obj, jobject unused);
579 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
580 (JNIEnv *env, jobject obj, jobject unused, jint index);
582 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
583 (JNIEnv *env, jobject obj, jobject unused, jint index);
585 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
586 (JNIEnv *env, jobject obj, jobject unused, jint index);
588 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
589 (JNIEnv *env, jobject obj, jobject unused, jint index);
591 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
592 (JNIEnv *env, jobject obj, jobject unused, jint index);
594 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
595 (JNIEnv *env, jobject obj, jobject unused, jint index);
597 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
598 (JNIEnv *env, jobject obj, jobject unused, jint index);
600 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
601 (JNIEnv *env, jobject obj, jobject unused, jint index);
603 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
604 (JNIEnv *env, jobject obj, jobject unused, jint index);
606 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
607 (JNIEnv *env, jobject obj, jobject unused, jint index);
609 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
610 (JNIEnv *env, jobject obj, jobject unused, jint index);
612 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
613 (JNIEnv *env, jobject obj, jobject unused, jint index);
615 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
616 (JNIEnv *env, jobject obj, jobject unused, jint index);
618 /*
619 * java.security.*
620 */
622 JNIEXPORT jobject JNICALL
623 JVM_DoPrivileged(JNIEnv *env, jclass cls,
624 jobject action, jobject context, jboolean wrapException);
626 JNIEXPORT jobject JNICALL
627 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
629 JNIEXPORT jobject JNICALL
630 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
632 /*
633 * Signal support, used to implement the shutdown sequence. Every VM must
634 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
635 * (^C) and the latter for external termination (kill, system shutdown, etc.).
636 * Other platform-dependent signal values may also be supported.
637 */
639 JNIEXPORT void * JNICALL
640 JVM_RegisterSignal(jint sig, void *handler);
642 JNIEXPORT jboolean JNICALL
643 JVM_RaiseSignal(jint sig);
645 JNIEXPORT jint JNICALL
646 JVM_FindSignal(const char *name);
648 /*
649 * Retrieve the assertion directives for the specified class.
650 */
651 JNIEXPORT jboolean JNICALL
652 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
654 /*
655 * Retrieve the assertion directives from the VM.
656 */
657 JNIEXPORT jobject JNICALL
658 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
660 /*
661 * java.util.concurrent.atomic.AtomicLong
662 */
663 JNIEXPORT jboolean JNICALL
664 JVM_SupportsCX8(void);
666 JNIEXPORT jboolean JNICALL
667 JVM_CX8Field(JNIEnv *env, jobject obj, jfieldID fldID, jlong oldVal, jlong newVal);
669 /*
670 * com.sun.dtrace.jsdt support
671 */
673 #define JVM_TRACING_DTRACE_VERSION 1
675 /*
676 * Structure to pass one probe description to JVM.
677 *
678 * The VM will overwrite the definition of the referenced method with
679 * code that will fire the probe.
680 */
681 typedef struct {
682 jmethodID method;
683 jstring function;
684 jstring name;
685 void* reserved[4]; // for future use
686 } JVM_DTraceProbe;
688 /**
689 * Encapsulates the stability ratings for a DTrace provider field
690 */
691 typedef struct {
692 jint nameStability;
693 jint dataStability;
694 jint dependencyClass;
695 } JVM_DTraceInterfaceAttributes;
697 /*
698 * Structure to pass one provider description to JVM
699 */
700 typedef struct {
701 jstring name;
702 JVM_DTraceProbe* probes;
703 jint probe_count;
704 JVM_DTraceInterfaceAttributes providerAttributes;
705 JVM_DTraceInterfaceAttributes moduleAttributes;
706 JVM_DTraceInterfaceAttributes functionAttributes;
707 JVM_DTraceInterfaceAttributes nameAttributes;
708 JVM_DTraceInterfaceAttributes argsAttributes;
709 void* reserved[4]; // for future use
710 } JVM_DTraceProvider;
712 /*
713 * Get the version number the JVM was built with
714 */
715 JNIEXPORT jint JNICALL
716 JVM_DTraceGetVersion(JNIEnv* env);
718 /*
719 * Register new probe with given signature, return global handle
720 *
721 * The version passed in is the version that the library code was
722 * built with.
723 */
724 JNIEXPORT jlong JNICALL
725 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name,
726 jint providers_count, JVM_DTraceProvider* providers);
728 /*
729 * Check JSDT probe
730 */
731 JNIEXPORT jboolean JNICALL
732 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method);
734 /*
735 * Destroy custom DOF
736 */
737 JNIEXPORT void JNICALL
738 JVM_DTraceDispose(JNIEnv* env, jlong handle);
740 /*
741 * Check to see if DTrace is supported by OS
742 */
743 JNIEXPORT jboolean JNICALL
744 JVM_DTraceIsSupported(JNIEnv* env);
746 /*************************************************************************
747 PART 2: Support for the Verifier and Class File Format Checker
748 ************************************************************************/
749 /*
750 * Return the class name in UTF format. The result is valid
751 * until JVM_ReleaseUTf is called.
752 *
753 * The caller must treat the string as a constant and not modify it
754 * in any way.
755 */
756 JNIEXPORT const char * JNICALL
757 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
759 /*
760 * Returns the constant pool types in the buffer provided by "types."
761 */
762 JNIEXPORT void JNICALL
763 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
765 /*
766 * Returns the number of Constant Pool entries.
767 */
768 JNIEXPORT jint JNICALL
769 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
771 /*
772 * Returns the number of *declared* fields or methods.
773 */
774 JNIEXPORT jint JNICALL
775 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
777 JNIEXPORT jint JNICALL
778 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
780 /*
781 * Returns the CP indexes of exceptions raised by a given method.
782 * Places the result in the given buffer.
783 *
784 * The method is identified by method_index.
785 */
786 JNIEXPORT void JNICALL
787 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
788 unsigned short *exceptions);
789 /*
790 * Returns the number of exceptions raised by a given method.
791 * The method is identified by method_index.
792 */
793 JNIEXPORT jint JNICALL
794 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
796 /*
797 * Returns the byte code sequence of a given method.
798 * Places the result in the given buffer.
799 *
800 * The method is identified by method_index.
801 */
802 JNIEXPORT void JNICALL
803 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
804 unsigned char *code);
806 /*
807 * Returns the length of the byte code sequence of a given method.
808 * The method is identified by method_index.
809 */
810 JNIEXPORT jint JNICALL
811 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
813 /*
814 * A structure used to a capture exception table entry in a Java method.
815 */
816 typedef struct {
817 jint start_pc;
818 jint end_pc;
819 jint handler_pc;
820 jint catchType;
821 } JVM_ExceptionTableEntryType;
823 /*
824 * Returns the exception table entry at entry_index of a given method.
825 * Places the result in the given buffer.
826 *
827 * The method is identified by method_index.
828 */
829 JNIEXPORT void JNICALL
830 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
831 jint entry_index,
832 JVM_ExceptionTableEntryType *entry);
834 /*
835 * Returns the length of the exception table of a given method.
836 * The method is identified by method_index.
837 */
838 JNIEXPORT jint JNICALL
839 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
841 /*
842 * Returns the modifiers of a given field.
843 * The field is identified by field_index.
844 */
845 JNIEXPORT jint JNICALL
846 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
848 /*
849 * Returns the modifiers of a given method.
850 * The method is identified by method_index.
851 */
852 JNIEXPORT jint JNICALL
853 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
855 /*
856 * Returns the number of local variables of a given method.
857 * The method is identified by method_index.
858 */
859 JNIEXPORT jint JNICALL
860 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
862 /*
863 * Returns the number of arguments (including this pointer) of a given method.
864 * The method is identified by method_index.
865 */
866 JNIEXPORT jint JNICALL
867 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
869 /*
870 * Returns the maximum amount of stack (in words) used by a given method.
871 * The method is identified by method_index.
872 */
873 JNIEXPORT jint JNICALL
874 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
876 /*
877 * Is a given method a constructor.
878 * The method is identified by method_index.
879 */
880 JNIEXPORT jboolean JNICALL
881 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
883 /*
884 * Is the given method generated by the VM.
885 * The method is identified by method_index.
886 */
887 JNIEXPORT jboolean JNICALL
888 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index);
890 /*
891 * Returns the name of a given method in UTF format.
892 * The result remains valid until JVM_ReleaseUTF is called.
893 *
894 * The caller must treat the string as a constant and not modify it
895 * in any way.
896 */
897 JNIEXPORT const char * JNICALL
898 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
900 /*
901 * Returns the signature of a given method in UTF format.
902 * The result remains valid until JVM_ReleaseUTF is called.
903 *
904 * The caller must treat the string as a constant and not modify it
905 * in any way.
906 */
907 JNIEXPORT const char * JNICALL
908 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
910 /*
911 * Returns the name of the field refered to at a given constant pool
912 * index.
913 *
914 * The result is in UTF format and remains valid until JVM_ReleaseUTF
915 * is called.
916 *
917 * The caller must treat the string as a constant and not modify it
918 * in any way.
919 */
920 JNIEXPORT const char * JNICALL
921 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
923 /*
924 * Returns the name of the method refered to at a given constant pool
925 * index.
926 *
927 * The result is in UTF format and remains valid until JVM_ReleaseUTF
928 * is called.
929 *
930 * The caller must treat the string as a constant and not modify it
931 * in any way.
932 */
933 JNIEXPORT const char * JNICALL
934 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
936 /*
937 * Returns the signature of the method refered to at a given constant pool
938 * index.
939 *
940 * The result is in UTF format and remains valid until JVM_ReleaseUTF
941 * is called.
942 *
943 * The caller must treat the string as a constant and not modify it
944 * in any way.
945 */
946 JNIEXPORT const char * JNICALL
947 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
949 /*
950 * Returns the signature of the field refered to at a given constant pool
951 * index.
952 *
953 * The result is in UTF format and remains valid until JVM_ReleaseUTF
954 * is called.
955 *
956 * The caller must treat the string as a constant and not modify it
957 * in any way.
958 */
959 JNIEXPORT const char * JNICALL
960 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
962 /*
963 * Returns the class name refered to at a given constant pool index.
964 *
965 * The result is in UTF format and remains valid until JVM_ReleaseUTF
966 * is called.
967 *
968 * The caller must treat the string as a constant and not modify it
969 * in any way.
970 */
971 JNIEXPORT const char * JNICALL
972 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
974 /*
975 * Returns the class name refered to at a given constant pool index.
976 *
977 * The constant pool entry must refer to a CONSTANT_Fieldref.
978 *
979 * The result is in UTF format and remains valid until JVM_ReleaseUTF
980 * is called.
981 *
982 * The caller must treat the string as a constant and not modify it
983 * in any way.
984 */
985 JNIEXPORT const char * JNICALL
986 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
988 /*
989 * Returns the class name refered to at a given constant pool index.
990 *
991 * The constant pool entry must refer to CONSTANT_Methodref or
992 * CONSTANT_InterfaceMethodref.
993 *
994 * The result is in UTF format and remains valid until JVM_ReleaseUTF
995 * is called.
996 *
997 * The caller must treat the string as a constant and not modify it
998 * in any way.
999 */
1000 JNIEXPORT const char * JNICALL
1001 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
1003 /*
1004 * Returns the modifiers of a field in calledClass. The field is
1005 * referred to in class cb at constant pool entry index.
1006 *
1007 * The caller must treat the string as a constant and not modify it
1008 * in any way.
1009 *
1010 * Returns -1 if the field does not exist in calledClass.
1011 */
1012 JNIEXPORT jint JNICALL
1013 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
1015 /*
1016 * Returns the modifiers of a method in calledClass. The method is
1017 * referred to in class cb at constant pool entry index.
1018 *
1019 * Returns -1 if the method does not exist in calledClass.
1020 */
1021 JNIEXPORT jint JNICALL
1022 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
1024 /*
1025 * Releases the UTF string obtained from the VM.
1026 */
1027 JNIEXPORT void JNICALL
1028 JVM_ReleaseUTF(const char *utf);
1030 /*
1031 * Compare if two classes are in the same package.
1032 */
1033 JNIEXPORT jboolean JNICALL
1034 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
1036 /* Constants in class files */
1038 #define JVM_ACC_PUBLIC 0x0001 /* visible to everyone */
1039 #define JVM_ACC_PRIVATE 0x0002 /* visible only to the defining class */
1040 #define JVM_ACC_PROTECTED 0x0004 /* visible to subclasses */
1041 #define JVM_ACC_STATIC 0x0008 /* instance variable is static */
1042 #define JVM_ACC_FINAL 0x0010 /* no further subclassing, overriding */
1043 #define JVM_ACC_SYNCHRONIZED 0x0020 /* wrap method call in monitor lock */
1044 #define JVM_ACC_SUPER 0x0020 /* funky handling of invokespecial */
1045 #define JVM_ACC_VOLATILE 0x0040 /* can not cache in registers */
1046 #define JVM_ACC_BRIDGE 0x0040 /* bridge method generated by compiler */
1047 #define JVM_ACC_TRANSIENT 0x0080 /* not persistent */
1048 #define JVM_ACC_VARARGS 0x0080 /* method declared with variable number of args */
1049 #define JVM_ACC_NATIVE 0x0100 /* implemented in C */
1050 #define JVM_ACC_INTERFACE 0x0200 /* class is an interface */
1051 #define JVM_ACC_ABSTRACT 0x0400 /* no definition provided */
1052 #define JVM_ACC_STRICT 0x0800 /* strict floating point */
1053 #define JVM_ACC_SYNTHETIC 0x1000 /* compiler-generated class, method or field */
1054 #define JVM_ACC_ANNOTATION 0x2000 /* annotation type */
1055 #define JVM_ACC_ENUM 0x4000 /* field is declared as element of enum */
1057 #define JVM_ACC_PUBLIC_BIT 0
1058 #define JVM_ACC_PRIVATE_BIT 1
1059 #define JVM_ACC_PROTECTED_BIT 2
1060 #define JVM_ACC_STATIC_BIT 3
1061 #define JVM_ACC_FINAL_BIT 4
1062 #define JVM_ACC_SYNCHRONIZED_BIT 5
1063 #define JVM_ACC_SUPER_BIT 5
1064 #define JVM_ACC_VOLATILE_BIT 6
1065 #define JVM_ACC_BRIDGE_BIT 6
1066 #define JVM_ACC_TRANSIENT_BIT 7
1067 #define JVM_ACC_VARARGS_BIT 7
1068 #define JVM_ACC_NATIVE_BIT 8
1069 #define JVM_ACC_INTERFACE_BIT 9
1070 #define JVM_ACC_ABSTRACT_BIT 10
1071 #define JVM_ACC_STRICT_BIT 11
1072 #define JVM_ACC_SYNTHETIC_BIT 12
1073 #define JVM_ACC_ANNOTATION_BIT 13
1074 #define JVM_ACC_ENUM_BIT 14
1076 // NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/utilities/ConstantTag.java
1077 enum {
1078 JVM_CONSTANT_Utf8 = 1,
1079 JVM_CONSTANT_Unicode, /* unused */
1080 JVM_CONSTANT_Integer,
1081 JVM_CONSTANT_Float,
1082 JVM_CONSTANT_Long,
1083 JVM_CONSTANT_Double,
1084 JVM_CONSTANT_Class,
1085 JVM_CONSTANT_String,
1086 JVM_CONSTANT_Fieldref,
1087 JVM_CONSTANT_Methodref,
1088 JVM_CONSTANT_InterfaceMethodref,
1089 JVM_CONSTANT_NameAndType,
1090 JVM_CONSTANT_MethodHandle = 15, // JSR 292
1091 JVM_CONSTANT_MethodType = 16, // JSR 292
1092 //JVM_CONSTANT_(unused) = 17, // JSR 292 early drafts only
1093 JVM_CONSTANT_InvokeDynamic = 18, // JSR 292
1094 JVM_CONSTANT_ExternalMax = 18 // Last tag found in classfiles
1095 };
1097 /* JVM_CONSTANT_MethodHandle subtypes */
1098 enum {
1099 JVM_REF_getField = 1,
1100 JVM_REF_getStatic = 2,
1101 JVM_REF_putField = 3,
1102 JVM_REF_putStatic = 4,
1103 JVM_REF_invokeVirtual = 5,
1104 JVM_REF_invokeStatic = 6,
1105 JVM_REF_invokeSpecial = 7,
1106 JVM_REF_newInvokeSpecial = 8,
1107 JVM_REF_invokeInterface = 9
1108 };
1110 /* Used in the newarray instruction. */
1112 #define JVM_T_BOOLEAN 4
1113 #define JVM_T_CHAR 5
1114 #define JVM_T_FLOAT 6
1115 #define JVM_T_DOUBLE 7
1116 #define JVM_T_BYTE 8
1117 #define JVM_T_SHORT 9
1118 #define JVM_T_INT 10
1119 #define JVM_T_LONG 11
1121 /* JVM method signatures */
1123 #define JVM_SIGNATURE_ARRAY '['
1124 #define JVM_SIGNATURE_BYTE 'B'
1125 #define JVM_SIGNATURE_CHAR 'C'
1126 #define JVM_SIGNATURE_CLASS 'L'
1127 #define JVM_SIGNATURE_ENDCLASS ';'
1128 #define JVM_SIGNATURE_ENUM 'E'
1129 #define JVM_SIGNATURE_FLOAT 'F'
1130 #define JVM_SIGNATURE_DOUBLE 'D'
1131 #define JVM_SIGNATURE_FUNC '('
1132 #define JVM_SIGNATURE_ENDFUNC ')'
1133 #define JVM_SIGNATURE_INT 'I'
1134 #define JVM_SIGNATURE_LONG 'J'
1135 #define JVM_SIGNATURE_SHORT 'S'
1136 #define JVM_SIGNATURE_VOID 'V'
1137 #define JVM_SIGNATURE_BOOLEAN 'Z'
1139 /*
1140 * A function defined by the byte-code verifier and called by the VM.
1141 * This is not a function implemented in the VM.
1142 *
1143 * Returns JNI_FALSE if verification fails. A detailed error message
1144 * will be places in msg_buf, whose length is specified by buf_len.
1145 */
1146 typedef jboolean (*verifier_fn_t)(JNIEnv *env,
1147 jclass cb,
1148 char * msg_buf,
1149 jint buf_len);
1152 /*
1153 * Support for a VM-independent class format checker.
1154 */
1155 typedef struct {
1156 unsigned long code; /* byte code */
1157 unsigned long excs; /* exceptions */
1158 unsigned long etab; /* catch table */
1159 unsigned long lnum; /* line number */
1160 unsigned long lvar; /* local vars */
1161 } method_size_info;
1163 typedef struct {
1164 unsigned int constants; /* constant pool */
1165 unsigned int fields;
1166 unsigned int methods;
1167 unsigned int interfaces;
1168 unsigned int fields2; /* number of static 2-word fields */
1169 unsigned int innerclasses; /* # of records in InnerClasses attr */
1171 method_size_info clinit; /* memory used in clinit */
1172 method_size_info main; /* used everywhere else */
1173 } class_size_info;
1175 /*
1176 * Functions defined in libjava.so to perform string conversions.
1177 *
1178 */
1180 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str);
1182 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b);
1184 /* This is the function defined in libjava.so that performs class
1185 * format checks. This functions fills in size information about
1186 * the class file and returns:
1187 *
1188 * 0: good
1189 * -1: out of memory
1190 * -2: bad format
1191 * -3: unsupported version
1192 * -4: bad class name
1193 */
1195 typedef jint (*check_format_fn_t)(char *class_name,
1196 unsigned char *data,
1197 unsigned int data_size,
1198 class_size_info *class_size,
1199 char *message_buffer,
1200 jint buffer_length,
1201 jboolean measure_only,
1202 jboolean check_relaxed);
1204 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1205 JVM_ACC_FINAL | \
1206 JVM_ACC_SUPER | \
1207 JVM_ACC_INTERFACE | \
1208 JVM_ACC_ABSTRACT | \
1209 JVM_ACC_ANNOTATION | \
1210 JVM_ACC_ENUM | \
1211 JVM_ACC_SYNTHETIC)
1213 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1214 JVM_ACC_PRIVATE | \
1215 JVM_ACC_PROTECTED | \
1216 JVM_ACC_STATIC | \
1217 JVM_ACC_FINAL | \
1218 JVM_ACC_VOLATILE | \
1219 JVM_ACC_TRANSIENT | \
1220 JVM_ACC_ENUM | \
1221 JVM_ACC_SYNTHETIC)
1223 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1224 JVM_ACC_PRIVATE | \
1225 JVM_ACC_PROTECTED | \
1226 JVM_ACC_STATIC | \
1227 JVM_ACC_FINAL | \
1228 JVM_ACC_SYNCHRONIZED | \
1229 JVM_ACC_BRIDGE | \
1230 JVM_ACC_VARARGS | \
1231 JVM_ACC_NATIVE | \
1232 JVM_ACC_ABSTRACT | \
1233 JVM_ACC_STRICT | \
1234 JVM_ACC_SYNTHETIC)
1236 /*
1237 * This is the function defined in libjava.so to perform path
1238 * canonicalization. VM call this function before opening jar files
1239 * to load system classes.
1240 *
1241 */
1243 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len);
1245 /*************************************************************************
1246 PART 3: I/O and Network Support
1247 ************************************************************************/
1249 /* Note that the JVM IO functions are expected to return JVM_IO_ERR
1250 * when there is any kind of error. The caller can then use the
1251 * platform specific support (e.g., errno) to get the detailed
1252 * error info. The JVM_GetLastErrorString procedure may also be used
1253 * to obtain a descriptive error string.
1254 */
1255 #define JVM_IO_ERR (-1)
1257 /* For interruptible IO. Returning JVM_IO_INTR indicates that an IO
1258 * operation has been disrupted by Thread.interrupt. There are a
1259 * number of technical difficulties related to interruptible IO that
1260 * need to be solved. For example, most existing programs do not handle
1261 * InterruptedIOExceptions specially, they simply treat those as any
1262 * IOExceptions, which typically indicate fatal errors.
1263 *
1264 * There are also two modes of operation for interruptible IO. In the
1265 * resumption mode, an interrupted IO operation is guaranteed not to
1266 * have any side-effects, and can be restarted. In the termination mode,
1267 * an interrupted IO operation corrupts the underlying IO stream, so
1268 * that the only reasonable operation on an interrupted stream is to
1269 * close that stream. The resumption mode seems to be impossible to
1270 * implement on Win32 and Solaris. Implementing the termination mode is
1271 * easier, but it's not clear that's the right semantics.
1272 *
1273 * Interruptible IO is not supported on Win32.It can be enabled/disabled
1274 * using a compile-time flag on Solaris. Third-party JVM ports do not
1275 * need to implement interruptible IO.
1276 */
1277 #define JVM_IO_INTR (-2)
1279 /* Write a string into the given buffer, in the platform's local encoding,
1280 * that describes the most recent system-level error to occur in this thread.
1281 * Return the length of the string or zero if no error occurred.
1282 */
1283 JNIEXPORT jint JNICALL
1284 JVM_GetLastErrorString(char *buf, int len);
1286 /*
1287 * Convert a pathname into native format. This function does syntactic
1288 * cleanup, such as removing redundant separator characters. It modifies
1289 * the given pathname string in place.
1290 */
1291 JNIEXPORT char * JNICALL
1292 JVM_NativePath(char *);
1294 /*
1295 * JVM I/O error codes
1296 */
1297 #define JVM_EEXIST -100
1299 /*
1300 * Open a file descriptor. This function returns a negative error code
1301 * on error, and a non-negative integer that is the file descriptor on
1302 * success.
1303 */
1304 JNIEXPORT jint JNICALL
1305 JVM_Open(const char *fname, jint flags, jint mode);
1307 /*
1308 * Close a file descriptor. This function returns -1 on error, and 0
1309 * on success.
1310 *
1311 * fd the file descriptor to close.
1312 */
1313 JNIEXPORT jint JNICALL
1314 JVM_Close(jint fd);
1316 /*
1317 * Read data from a file decriptor into a char array.
1318 *
1319 * fd the file descriptor to read from.
1320 * buf the buffer where to put the read data.
1321 * nbytes the number of bytes to read.
1322 *
1323 * This function returns -1 on error, and 0 on success.
1324 */
1325 JNIEXPORT jint JNICALL
1326 JVM_Read(jint fd, char *buf, jint nbytes);
1328 /*
1329 * Write data from a char array to a file decriptor.
1330 *
1331 * fd the file descriptor to read from.
1332 * buf the buffer from which to fetch the data.
1333 * nbytes the number of bytes to write.
1334 *
1335 * This function returns -1 on error, and 0 on success.
1336 */
1337 JNIEXPORT jint JNICALL
1338 JVM_Write(jint fd, char *buf, jint nbytes);
1340 /*
1341 * Returns the number of bytes available for reading from a given file
1342 * descriptor
1343 */
1344 JNIEXPORT jint JNICALL
1345 JVM_Available(jint fd, jlong *pbytes);
1347 /*
1348 * Move the file descriptor pointer from whence by offset.
1349 *
1350 * fd the file descriptor to move.
1351 * offset the number of bytes to move it by.
1352 * whence the start from where to move it.
1353 *
1354 * This function returns the resulting pointer location.
1355 */
1356 JNIEXPORT jlong JNICALL
1357 JVM_Lseek(jint fd, jlong offset, jint whence);
1359 /*
1360 * Set the length of the file associated with the given descriptor to the given
1361 * length. If the new length is longer than the current length then the file
1362 * is extended; the contents of the extended portion are not defined. The
1363 * value of the file pointer is undefined after this procedure returns.
1364 */
1365 JNIEXPORT jint JNICALL
1366 JVM_SetLength(jint fd, jlong length);
1368 /*
1369 * Synchronize the file descriptor's in memory state with that of the
1370 * physical device. Return of -1 is an error, 0 is OK.
1371 */
1372 JNIEXPORT jint JNICALL
1373 JVM_Sync(jint fd);
1375 /*
1376 * Networking library support
1377 */
1379 JNIEXPORT jint JNICALL
1380 JVM_InitializeSocketLibrary(void);
1382 struct sockaddr;
1384 JNIEXPORT jint JNICALL
1385 JVM_Socket(jint domain, jint type, jint protocol);
1387 JNIEXPORT jint JNICALL
1388 JVM_SocketClose(jint fd);
1390 JNIEXPORT jint JNICALL
1391 JVM_SocketShutdown(jint fd, jint howto);
1393 JNIEXPORT jint JNICALL
1394 JVM_Recv(jint fd, char *buf, jint nBytes, jint flags);
1396 JNIEXPORT jint JNICALL
1397 JVM_Send(jint fd, char *buf, jint nBytes, jint flags);
1399 JNIEXPORT jint JNICALL
1400 JVM_Timeout(int fd, long timeout);
1402 JNIEXPORT jint JNICALL
1403 JVM_Listen(jint fd, jint count);
1405 JNIEXPORT jint JNICALL
1406 JVM_Connect(jint fd, struct sockaddr *him, jint len);
1408 JNIEXPORT jint JNICALL
1409 JVM_Bind(jint fd, struct sockaddr *him, jint len);
1411 JNIEXPORT jint JNICALL
1412 JVM_Accept(jint fd, struct sockaddr *him, jint *len);
1414 JNIEXPORT jint JNICALL
1415 JVM_RecvFrom(jint fd, char *buf, int nBytes,
1416 int flags, struct sockaddr *from, int *fromlen);
1418 JNIEXPORT jint JNICALL
1419 JVM_SendTo(jint fd, char *buf, int len,
1420 int flags, struct sockaddr *to, int tolen);
1422 JNIEXPORT jint JNICALL
1423 JVM_SocketAvailable(jint fd, jint *result);
1426 JNIEXPORT jint JNICALL
1427 JVM_GetSockName(jint fd, struct sockaddr *him, int *len);
1429 JNIEXPORT jint JNICALL
1430 JVM_GetSockOpt(jint fd, int level, int optname, char *optval, int *optlen);
1432 JNIEXPORT jint JNICALL
1433 JVM_SetSockOpt(jint fd, int level, int optname, const char *optval, int optlen);
1435 JNIEXPORT int JNICALL
1436 JVM_GetHostName(char* name, int namelen);
1438 /*
1439 * The standard printing functions supported by the Java VM. (Should they
1440 * be renamed to JVM_* in the future?
1441 */
1443 /*
1444 * BE CAREFUL! The following functions do not implement the
1445 * full feature set of standard C printf formats.
1446 */
1447 JNIEXPORT int
1448 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1450 JNIEXPORT int
1451 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1453 JNIEXPORT int
1454 jio_fprintf(FILE *, const char *fmt, ...);
1456 JNIEXPORT int
1457 jio_vfprintf(FILE *, const char *fmt, va_list args);
1460 JNIEXPORT void * JNICALL
1461 JVM_RawMonitorCreate(void);
1463 JNIEXPORT void JNICALL
1464 JVM_RawMonitorDestroy(void *mon);
1466 JNIEXPORT jint JNICALL
1467 JVM_RawMonitorEnter(void *mon);
1469 JNIEXPORT void JNICALL
1470 JVM_RawMonitorExit(void *mon);
1472 /*
1473 * java.lang.reflect.Method
1474 */
1475 JNIEXPORT jobject JNICALL
1476 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
1478 /*
1479 * java.lang.reflect.Constructor
1480 */
1481 JNIEXPORT jobject JNICALL
1482 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
1484 /*
1485 * java.lang.management support
1486 */
1487 JNIEXPORT void* JNICALL
1488 JVM_GetManagement(jint version);
1490 /*
1491 * com.sun.tools.attach.VirtualMachine support
1492 *
1493 * Initialize the agent properties with the properties maintained in the VM.
1494 */
1495 JNIEXPORT jobject JNICALL
1496 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1498 /* Generics reflection support.
1499 *
1500 * Returns information about the given class's EnclosingMethod
1501 * attribute, if present, or null if the class had no enclosing
1502 * method.
1503 *
1504 * If non-null, the returned array contains three elements. Element 0
1505 * is the java.lang.Class of which the enclosing method is a member,
1506 * and elements 1 and 2 are the java.lang.Strings for the enclosing
1507 * method's name and descriptor, respectively.
1508 */
1509 JNIEXPORT jobjectArray JNICALL
1510 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1512 /*
1513 * Java thread state support
1514 */
1515 enum {
1516 JAVA_THREAD_STATE_NEW = 0,
1517 JAVA_THREAD_STATE_RUNNABLE = 1,
1518 JAVA_THREAD_STATE_BLOCKED = 2,
1519 JAVA_THREAD_STATE_WAITING = 3,
1520 JAVA_THREAD_STATE_TIMED_WAITING = 4,
1521 JAVA_THREAD_STATE_TERMINATED = 5,
1522 JAVA_THREAD_STATE_COUNT = 6
1523 };
1525 /*
1526 * Returns an array of the threadStatus values representing the
1527 * given Java thread state. Returns NULL if the VM version is
1528 * incompatible with the JDK or doesn't support the given
1529 * Java thread state.
1530 */
1531 JNIEXPORT jintArray JNICALL
1532 JVM_GetThreadStateValues(JNIEnv* env, jint javaThreadState);
1534 /*
1535 * Returns an array of the substate names representing the
1536 * given Java thread state. Returns NULL if the VM version is
1537 * incompatible with the JDK or the VM doesn't support
1538 * the given Java thread state.
1539 * values must be the jintArray returned from JVM_GetThreadStateValues
1540 * and javaThreadState.
1541 */
1542 JNIEXPORT jobjectArray JNICALL
1543 JVM_GetThreadStateNames(JNIEnv* env, jint javaThreadState, jintArray values);
1545 /* =========================================================================
1546 * The following defines a private JVM interface that the JDK can query
1547 * for the JVM version and capabilities. sun.misc.Version defines
1548 * the methods for getting the VM version and its capabilities.
1549 *
1550 * When a new bit is added, the following should be updated to provide
1551 * access to the new capability:
1552 * HS: JVM_GetVersionInfo and Abstract_VM_Version class
1553 * SDK: Version class
1554 *
1555 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for
1556 * JVM to query for the JDK version and capabilities.
1557 *
1558 * When a new bit is added, the following should be updated to provide
1559 * access to the new capability:
1560 * HS: JDK_Version class
1561 * SDK: JDK_GetVersionInfo0
1562 *
1563 * ==========================================================================
1564 */
1565 typedef struct {
1566 /* HotSpot Express VM version string:
1567 * <major>.<minor>-bxx[-<identifier>][-<debug_flavor>]
1568 */
1569 unsigned int jvm_version; /* Consists of major.minor.0.build */
1570 unsigned int update_version : 8; /* 0 in HotSpot Express VM */
1571 unsigned int special_update_version : 8; /* 0 in HotSpot Express VM */
1572 unsigned int reserved1 : 16;
1573 unsigned int reserved2;
1575 /* The following bits represents JVM supports that JDK has dependency on.
1576 * JDK can use these bits to determine which JVM version
1577 * and support it has to maintain runtime compatibility.
1578 *
1579 * When a new bit is added in a minor or update release, make sure
1580 * the new bit is also added in the main/baseline.
1581 */
1582 unsigned int is_attachable : 1;
1583 unsigned int : 31;
1584 unsigned int : 32;
1585 unsigned int : 32;
1586 } jvm_version_info;
1588 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1589 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1590 // Micro version is 0 in HotSpot Express VM (set in jvm.cpp).
1591 #define JVM_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1592 /* Build number is available in all HotSpot Express VM builds.
1593 * It is defined in make/hotspot_version file.
1594 */
1595 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF))
1597 JNIEXPORT void JNICALL
1598 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size);
1600 typedef struct {
1601 // Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx
1602 unsigned int jdk_version; /* Consists of major, minor, micro (n.n.n) */
1603 /* and build number (xx) */
1604 unsigned int update_version : 8; /* Update release version (uu) */
1605 unsigned int special_update_version : 8; /* Special update release version (c)*/
1606 unsigned int reserved1 : 16;
1607 unsigned int reserved2;
1609 /* The following bits represents new JDK supports that VM has dependency on.
1610 * VM implementation can use these bits to determine which JDK version
1611 * and support it has to maintain runtime compatibility.
1612 *
1613 * When a new bit is added in a minor or update release, make sure
1614 * the new bit is also added in the main/baseline.
1615 */
1616 unsigned int thread_park_blocker : 1;
1617 unsigned int post_vm_init_hook_enabled : 1;
1618 unsigned int pending_list_uses_discovered_field : 1;
1619 unsigned int : 29;
1620 unsigned int : 32;
1621 unsigned int : 32;
1622 } jdk_version_info;
1624 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1625 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1626 #define JDK_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1628 /* Build number is available only for RE build (i.e. JDK_BUILD_NUMBER is set to bNN)
1629 * It will be zero for internal builds.
1630 */
1631 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF))
1633 /*
1634 * This is the function JDK_GetVersionInfo0 defined in libjava.so
1635 * that is dynamically looked up by JVM.
1636 */
1637 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size);
1639 /*
1640 * This structure is used by the launcher to get the default thread
1641 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1642 * version of 1.1. As it is not supported otherwise, it has been removed
1643 * from jni.h
1644 */
1645 typedef struct JDK1_1InitArgs {
1646 jint version;
1648 char **properties;
1649 jint checkSource;
1650 jint nativeStackSize;
1651 jint javaStackSize;
1652 jint minHeapSize;
1653 jint maxHeapSize;
1654 jint verifyMode;
1655 char *classpath;
1657 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1658 void (JNICALL *exit)(jint code);
1659 void (JNICALL *abort)(void);
1661 jint enableClassGC;
1662 jint enableVerboseGC;
1663 jint disableAsyncGC;
1664 jint verbose;
1665 jboolean debugging;
1666 jint debugPort;
1667 } JDK1_1InitArgs;
1669 #ifdef __cplusplus
1670 } /* extern "C" */
1671 #endif /* __cplusplus */
1673 #endif /* !_JAVASOFT_JVM_H_ */
1675 #endif // SHARE_VM_PRIMS_JVM_H
