Mercurial > jdk8-mips64-public > hotspot / file revision
src/share/vm/prims/jvm.h@1d01a7f3a336
src/share/vm/prims/jvm.h
Wed, 23 Apr 2014 11:18:53 +0200
- author
- sjohanss
- date
- Wed, 23 Apr 2014 11:18:53 +0200
- changeset 6641
- 1d01a7f3a336
- parent 6472
- 2b8e28fdf503
- child 6705
- a103c376459a
- child 6830
- 54bc75c144b0
- permissions
- -rw-r--r--
8033426: Scale initial NewSize using NewRatio if not set on command line
Summary: Now using NewRatio to size initial NewSize if not specified on commandline.
Reviewed-by: jmasa, jwilhelm
1 /*
2 * Copyright (c) 1997, 2013, 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.
424 */
425 JNIEXPORT jclass JNICALL
426 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,
427 jclass from);
429 /* Find a loaded class cached by the VM */
430 JNIEXPORT jclass JNICALL
431 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);
433 /* Define a class */
434 JNIEXPORT jclass JNICALL
435 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,
436 jsize len, jobject pd);
438 /* Define a class with a source (added in JDK1.5) */
439 JNIEXPORT jclass JNICALL
440 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,
441 const jbyte *buf, jsize len, jobject pd,
442 const char *source);
444 /* Define a class with a source with conditional verification (added HSX 14)
445 * -Xverify:all will verify anyway, -Xverify:none will not verify,
446 * -Xverify:remote (default) will obey this conditional
447 * i.e. true = should_verify_class
448 */
449 JNIEXPORT jclass JNICALL
450 JVM_DefineClassWithSourceCond(JNIEnv *env, const char *name,
451 jobject loader, const jbyte *buf,
452 jsize len, jobject pd, const char *source,
453 jboolean verify);
455 /*
456 * Reflection support functions
457 */
459 JNIEXPORT jstring JNICALL
460 JVM_GetClassName(JNIEnv *env, jclass cls);
462 JNIEXPORT jobjectArray JNICALL
463 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);
465 JNIEXPORT jobject JNICALL
466 JVM_GetClassLoader(JNIEnv *env, jclass cls);
468 JNIEXPORT jboolean JNICALL
469 JVM_IsInterface(JNIEnv *env, jclass cls);
471 JNIEXPORT jobjectArray JNICALL
472 JVM_GetClassSigners(JNIEnv *env, jclass cls);
474 JNIEXPORT void JNICALL
475 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);
477 JNIEXPORT jobject JNICALL
478 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);
480 JNIEXPORT jboolean JNICALL
481 JVM_IsArrayClass(JNIEnv *env, jclass cls);
483 JNIEXPORT jboolean JNICALL
484 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);
486 JNIEXPORT jclass JNICALL
487 JVM_GetComponentType(JNIEnv *env, jclass cls);
489 JNIEXPORT jint JNICALL
490 JVM_GetClassModifiers(JNIEnv *env, jclass cls);
492 JNIEXPORT jobjectArray JNICALL
493 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);
495 JNIEXPORT jclass JNICALL
496 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);
498 /* Generics support (JDK 1.5) */
499 JNIEXPORT jstring JNICALL
500 JVM_GetClassSignature(JNIEnv *env, jclass cls);
502 /* Annotations support (JDK 1.5) */
503 JNIEXPORT jbyteArray JNICALL
504 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);
506 /* Annotations support (JDK 1.6) */
508 // field is a handle to a java.lang.reflect.Field object
509 JNIEXPORT jbyteArray JNICALL
510 JVM_GetFieldAnnotations(JNIEnv *env, jobject field);
512 // method is a handle to a java.lang.reflect.Method object
513 JNIEXPORT jbyteArray JNICALL
514 JVM_GetMethodAnnotations(JNIEnv *env, jobject method);
516 // method is a handle to a java.lang.reflect.Method object
517 JNIEXPORT jbyteArray JNICALL
518 JVM_GetMethodDefaultAnnotationValue(JNIEnv *env, jobject method);
520 // method is a handle to a java.lang.reflect.Method object
521 JNIEXPORT jbyteArray JNICALL
522 JVM_GetMethodParameterAnnotations(JNIEnv *env, jobject method);
524 /* Type use annotations support (JDK 1.8) */
526 JNIEXPORT jbyteArray JNICALL
527 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls);
529 // field is a handle to a java.lang.reflect.Field object
530 JNIEXPORT jbyteArray JNICALL
531 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field);
533 // method is a handle to a java.lang.reflect.Method object
534 JNIEXPORT jbyteArray JNICALL
535 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method);
537 /*
538 * New (JDK 1.4) reflection implementation
539 */
541 JNIEXPORT jobjectArray JNICALL
542 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);
544 JNIEXPORT jobjectArray JNICALL
545 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);
547 JNIEXPORT jobjectArray JNICALL
548 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);
550 /* Differs from JVM_GetClassModifiers in treatment of inner classes.
551 This returns the access flags for the class as specified in the
552 class file rather than searching the InnerClasses attribute (if
553 present) to find the source-level access flags. Only the values of
554 the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be
555 valid. */
556 JNIEXPORT jint JNICALL
557 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);
559 /*
560 * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)
561 */
563 JNIEXPORT jobject JNICALL
564 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);
566 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize
567 (JNIEnv *env, jobject obj, jobject unused);
569 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
570 (JNIEnv *env, jobject obj, jobject unused, jint index);
572 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
573 (JNIEnv *env, jobject obj, jobject unused, jint index);
575 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
576 (JNIEnv *env, jobject obj, jobject unused, jint index);
578 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded
579 (JNIEnv *env, jobject obj, jobject unused, jint index);
581 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt
582 (JNIEnv *env, jobject obj, jobject unused, jint index);
584 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
585 (JNIEnv *env, jobject obj, jobject unused, jint index);
587 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
588 (JNIEnv *env, jobject obj, jobject unused, jint index);
590 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
591 (JNIEnv *env, jobject obj, jobject unused, jint index);
593 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt
594 (JNIEnv *env, jobject obj, jobject unused, jint index);
596 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt
597 (JNIEnv *env, jobject obj, jobject unused, jint index);
599 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt
600 (JNIEnv *env, jobject obj, jobject unused, jint index);
602 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
603 (JNIEnv *env, jobject obj, jobject unused, jint index);
605 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
606 (JNIEnv *env, jobject obj, jobject unused, jint index);
608 /*
609 * java.security.*
610 */
612 JNIEXPORT jobject JNICALL
613 JVM_DoPrivileged(JNIEnv *env, jclass cls,
614 jobject action, jobject context, jboolean wrapException);
616 JNIEXPORT jobject JNICALL
617 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);
619 JNIEXPORT jobject JNICALL
620 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);
622 /*
623 * Signal support, used to implement the shutdown sequence. Every VM must
624 * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts
625 * (^C) and the latter for external termination (kill, system shutdown, etc.).
626 * Other platform-dependent signal values may also be supported.
627 */
629 JNIEXPORT void * JNICALL
630 JVM_RegisterSignal(jint sig, void *handler);
632 JNIEXPORT jboolean JNICALL
633 JVM_RaiseSignal(jint sig);
635 JNIEXPORT jint JNICALL
636 JVM_FindSignal(const char *name);
638 /*
639 * Retrieve the assertion directives for the specified class.
640 */
641 JNIEXPORT jboolean JNICALL
642 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);
644 /*
645 * Retrieve the assertion directives from the VM.
646 */
647 JNIEXPORT jobject JNICALL
648 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
650 /*
651 * java.util.concurrent.atomic.AtomicLong
652 */
653 JNIEXPORT jboolean JNICALL
654 JVM_SupportsCX8(void);
656 JNIEXPORT jboolean JNICALL
657 JVM_CX8Field(JNIEnv *env, jobject obj, jfieldID fldID, jlong oldVal, jlong newVal);
659 /*
660 * com.sun.dtrace.jsdt support
661 */
663 #define JVM_TRACING_DTRACE_VERSION 1
665 /*
666 * Structure to pass one probe description to JVM.
667 *
668 * The VM will overwrite the definition of the referenced method with
669 * code that will fire the probe.
670 */
671 typedef struct {
672 jmethodID method;
673 jstring function;
674 jstring name;
675 void* reserved[4]; // for future use
676 } JVM_DTraceProbe;
678 /**
679 * Encapsulates the stability ratings for a DTrace provider field
680 */
681 typedef struct {
682 jint nameStability;
683 jint dataStability;
684 jint dependencyClass;
685 } JVM_DTraceInterfaceAttributes;
687 /*
688 * Structure to pass one provider description to JVM
689 */
690 typedef struct {
691 jstring name;
692 JVM_DTraceProbe* probes;
693 jint probe_count;
694 JVM_DTraceInterfaceAttributes providerAttributes;
695 JVM_DTraceInterfaceAttributes moduleAttributes;
696 JVM_DTraceInterfaceAttributes functionAttributes;
697 JVM_DTraceInterfaceAttributes nameAttributes;
698 JVM_DTraceInterfaceAttributes argsAttributes;
699 void* reserved[4]; // for future use
700 } JVM_DTraceProvider;
702 /*
703 * Get the version number the JVM was built with
704 */
705 JNIEXPORT jint JNICALL
706 JVM_DTraceGetVersion(JNIEnv* env);
708 /*
709 * Register new probe with given signature, return global handle
710 *
711 * The version passed in is the version that the library code was
712 * built with.
713 */
714 JNIEXPORT jlong JNICALL
715 JVM_DTraceActivate(JNIEnv* env, jint version, jstring module_name,
716 jint providers_count, JVM_DTraceProvider* providers);
718 /*
719 * Check JSDT probe
720 */
721 JNIEXPORT jboolean JNICALL
722 JVM_DTraceIsProbeEnabled(JNIEnv* env, jmethodID method);
724 /*
725 * Destroy custom DOF
726 */
727 JNIEXPORT void JNICALL
728 JVM_DTraceDispose(JNIEnv* env, jlong handle);
730 /*
731 * Check to see if DTrace is supported by OS
732 */
733 JNIEXPORT jboolean JNICALL
734 JVM_DTraceIsSupported(JNIEnv* env);
736 /*************************************************************************
737 PART 2: Support for the Verifier and Class File Format Checker
738 ************************************************************************/
739 /*
740 * Return the class name in UTF format. The result is valid
741 * until JVM_ReleaseUTf is called.
742 *
743 * The caller must treat the string as a constant and not modify it
744 * in any way.
745 */
746 JNIEXPORT const char * JNICALL
747 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);
749 /*
750 * Returns the constant pool types in the buffer provided by "types."
751 */
752 JNIEXPORT void JNICALL
753 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);
755 /*
756 * Returns the number of Constant Pool entries.
757 */
758 JNIEXPORT jint JNICALL
759 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);
761 /*
762 * Returns the number of *declared* fields or methods.
763 */
764 JNIEXPORT jint JNICALL
765 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);
767 JNIEXPORT jint JNICALL
768 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);
770 /*
771 * Returns the CP indexes of exceptions raised by a given method.
772 * Places the result in the given buffer.
773 *
774 * The method is identified by method_index.
775 */
776 JNIEXPORT void JNICALL
777 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,
778 unsigned short *exceptions);
779 /*
780 * Returns the number of exceptions raised by a given method.
781 * The method is identified by method_index.
782 */
783 JNIEXPORT jint JNICALL
784 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);
786 /*
787 * Returns the byte code sequence of a given method.
788 * Places the result in the given buffer.
789 *
790 * The method is identified by method_index.
791 */
792 JNIEXPORT void JNICALL
793 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,
794 unsigned char *code);
796 /*
797 * Returns the length of the byte code sequence of a given method.
798 * The method is identified by method_index.
799 */
800 JNIEXPORT jint JNICALL
801 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);
803 /*
804 * A structure used to a capture exception table entry in a Java method.
805 */
806 typedef struct {
807 jint start_pc;
808 jint end_pc;
809 jint handler_pc;
810 jint catchType;
811 } JVM_ExceptionTableEntryType;
813 /*
814 * Returns the exception table entry at entry_index of a given method.
815 * Places the result in the given buffer.
816 *
817 * The method is identified by method_index.
818 */
819 JNIEXPORT void JNICALL
820 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,
821 jint entry_index,
822 JVM_ExceptionTableEntryType *entry);
824 /*
825 * Returns the length of the exception table of a given method.
826 * The method is identified by method_index.
827 */
828 JNIEXPORT jint JNICALL
829 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);
831 /*
832 * Returns the modifiers of a given field.
833 * The field is identified by field_index.
834 */
835 JNIEXPORT jint JNICALL
836 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);
838 /*
839 * Returns the modifiers of a given method.
840 * The method is identified by method_index.
841 */
842 JNIEXPORT jint JNICALL
843 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);
845 /*
846 * Returns the number of local variables of a given method.
847 * The method is identified by method_index.
848 */
849 JNIEXPORT jint JNICALL
850 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);
852 /*
853 * Returns the number of arguments (including this pointer) of a given method.
854 * The method is identified by method_index.
855 */
856 JNIEXPORT jint JNICALL
857 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);
859 /*
860 * Returns the maximum amount of stack (in words) used by a given method.
861 * The method is identified by method_index.
862 */
863 JNIEXPORT jint JNICALL
864 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);
866 /*
867 * Is a given method a constructor.
868 * The method is identified by method_index.
869 */
870 JNIEXPORT jboolean JNICALL
871 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);
873 /*
874 * Is the given method generated by the VM.
875 * The method is identified by method_index.
876 */
877 JNIEXPORT jboolean JNICALL
878 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index);
880 /*
881 * Returns the name of a given method in UTF format.
882 * The result remains valid until JVM_ReleaseUTF is called.
883 *
884 * The caller must treat the string as a constant and not modify it
885 * in any way.
886 */
887 JNIEXPORT const char * JNICALL
888 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);
890 /*
891 * Returns the signature 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_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);
900 /*
901 * Returns the name of the field refered to at a given constant pool
902 * index.
903 *
904 * The result is in UTF format and remains valid until JVM_ReleaseUTF
905 * 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_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);
913 /*
914 * Returns the name of the method 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_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);
926 /*
927 * Returns the signature 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_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);
939 /*
940 * Returns the signature of the field 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_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);
952 /*
953 * Returns the class name refered to at a given constant pool index.
954 *
955 * The result is in UTF format and remains valid until JVM_ReleaseUTF
956 * is called.
957 *
958 * The caller must treat the string as a constant and not modify it
959 * in any way.
960 */
961 JNIEXPORT const char * JNICALL
962 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);
964 /*
965 * Returns the class name refered to at a given constant pool index.
966 *
967 * The constant pool entry must refer to a CONSTANT_Fieldref.
968 *
969 * The result is in UTF format and remains valid until JVM_ReleaseUTF
970 * is called.
971 *
972 * The caller must treat the string as a constant and not modify it
973 * in any way.
974 */
975 JNIEXPORT const char * JNICALL
976 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);
978 /*
979 * Returns the class name refered to at a given constant pool index.
980 *
981 * The constant pool entry must refer to CONSTANT_Methodref or
982 * CONSTANT_InterfaceMethodref.
983 *
984 * The result is in UTF format and remains valid until JVM_ReleaseUTF
985 * is called.
986 *
987 * The caller must treat the string as a constant and not modify it
988 * in any way.
989 */
990 JNIEXPORT const char * JNICALL
991 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);
993 /*
994 * Returns the modifiers of a field in calledClass. The field is
995 * referred to in class cb at constant pool entry index.
996 *
997 * The caller must treat the string as a constant and not modify it
998 * in any way.
999 *
1000 * Returns -1 if the field does not exist in calledClass.
1001 */
1002 JNIEXPORT jint JNICALL
1003 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
1005 /*
1006 * Returns the modifiers of a method in calledClass. The method is
1007 * referred to in class cb at constant pool entry index.
1008 *
1009 * Returns -1 if the method does not exist in calledClass.
1010 */
1011 JNIEXPORT jint JNICALL
1012 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);
1014 /*
1015 * Releases the UTF string obtained from the VM.
1016 */
1017 JNIEXPORT void JNICALL
1018 JVM_ReleaseUTF(const char *utf);
1020 /*
1021 * Compare if two classes are in the same package.
1022 */
1023 JNIEXPORT jboolean JNICALL
1024 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);
1026 /* Constants in class files */
1028 #define JVM_ACC_PUBLIC 0x0001 /* visible to everyone */
1029 #define JVM_ACC_PRIVATE 0x0002 /* visible only to the defining class */
1030 #define JVM_ACC_PROTECTED 0x0004 /* visible to subclasses */
1031 #define JVM_ACC_STATIC 0x0008 /* instance variable is static */
1032 #define JVM_ACC_FINAL 0x0010 /* no further subclassing, overriding */
1033 #define JVM_ACC_SYNCHRONIZED 0x0020 /* wrap method call in monitor lock */
1034 #define JVM_ACC_SUPER 0x0020 /* funky handling of invokespecial */
1035 #define JVM_ACC_VOLATILE 0x0040 /* can not cache in registers */
1036 #define JVM_ACC_BRIDGE 0x0040 /* bridge method generated by compiler */
1037 #define JVM_ACC_TRANSIENT 0x0080 /* not persistent */
1038 #define JVM_ACC_VARARGS 0x0080 /* method declared with variable number of args */
1039 #define JVM_ACC_NATIVE 0x0100 /* implemented in C */
1040 #define JVM_ACC_INTERFACE 0x0200 /* class is an interface */
1041 #define JVM_ACC_ABSTRACT 0x0400 /* no definition provided */
1042 #define JVM_ACC_STRICT 0x0800 /* strict floating point */
1043 #define JVM_ACC_SYNTHETIC 0x1000 /* compiler-generated class, method or field */
1044 #define JVM_ACC_ANNOTATION 0x2000 /* annotation type */
1045 #define JVM_ACC_ENUM 0x4000 /* field is declared as element of enum */
1047 #define JVM_ACC_PUBLIC_BIT 0
1048 #define JVM_ACC_PRIVATE_BIT 1
1049 #define JVM_ACC_PROTECTED_BIT 2
1050 #define JVM_ACC_STATIC_BIT 3
1051 #define JVM_ACC_FINAL_BIT 4
1052 #define JVM_ACC_SYNCHRONIZED_BIT 5
1053 #define JVM_ACC_SUPER_BIT 5
1054 #define JVM_ACC_VOLATILE_BIT 6
1055 #define JVM_ACC_BRIDGE_BIT 6
1056 #define JVM_ACC_TRANSIENT_BIT 7
1057 #define JVM_ACC_VARARGS_BIT 7
1058 #define JVM_ACC_NATIVE_BIT 8
1059 #define JVM_ACC_INTERFACE_BIT 9
1060 #define JVM_ACC_ABSTRACT_BIT 10
1061 #define JVM_ACC_STRICT_BIT 11
1062 #define JVM_ACC_SYNTHETIC_BIT 12
1063 #define JVM_ACC_ANNOTATION_BIT 13
1064 #define JVM_ACC_ENUM_BIT 14
1066 // NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/utilities/ConstantTag.java
1067 enum {
1068 JVM_CONSTANT_Utf8 = 1,
1069 JVM_CONSTANT_Unicode, /* unused */
1070 JVM_CONSTANT_Integer,
1071 JVM_CONSTANT_Float,
1072 JVM_CONSTANT_Long,
1073 JVM_CONSTANT_Double,
1074 JVM_CONSTANT_Class,
1075 JVM_CONSTANT_String,
1076 JVM_CONSTANT_Fieldref,
1077 JVM_CONSTANT_Methodref,
1078 JVM_CONSTANT_InterfaceMethodref,
1079 JVM_CONSTANT_NameAndType,
1080 JVM_CONSTANT_MethodHandle = 15, // JSR 292
1081 JVM_CONSTANT_MethodType = 16, // JSR 292
1082 //JVM_CONSTANT_(unused) = 17, // JSR 292 early drafts only
1083 JVM_CONSTANT_InvokeDynamic = 18, // JSR 292
1084 JVM_CONSTANT_ExternalMax = 18 // Last tag found in classfiles
1085 };
1087 /* JVM_CONSTANT_MethodHandle subtypes */
1088 enum {
1089 JVM_REF_getField = 1,
1090 JVM_REF_getStatic = 2,
1091 JVM_REF_putField = 3,
1092 JVM_REF_putStatic = 4,
1093 JVM_REF_invokeVirtual = 5,
1094 JVM_REF_invokeStatic = 6,
1095 JVM_REF_invokeSpecial = 7,
1096 JVM_REF_newInvokeSpecial = 8,
1097 JVM_REF_invokeInterface = 9
1098 };
1100 /* Used in the newarray instruction. */
1102 #define JVM_T_BOOLEAN 4
1103 #define JVM_T_CHAR 5
1104 #define JVM_T_FLOAT 6
1105 #define JVM_T_DOUBLE 7
1106 #define JVM_T_BYTE 8
1107 #define JVM_T_SHORT 9
1108 #define JVM_T_INT 10
1109 #define JVM_T_LONG 11
1111 /* JVM method signatures */
1113 #define JVM_SIGNATURE_ARRAY '['
1114 #define JVM_SIGNATURE_BYTE 'B'
1115 #define JVM_SIGNATURE_CHAR 'C'
1116 #define JVM_SIGNATURE_CLASS 'L'
1117 #define JVM_SIGNATURE_ENDCLASS ';'
1118 #define JVM_SIGNATURE_ENUM 'E'
1119 #define JVM_SIGNATURE_FLOAT 'F'
1120 #define JVM_SIGNATURE_DOUBLE 'D'
1121 #define JVM_SIGNATURE_FUNC '('
1122 #define JVM_SIGNATURE_ENDFUNC ')'
1123 #define JVM_SIGNATURE_INT 'I'
1124 #define JVM_SIGNATURE_LONG 'J'
1125 #define JVM_SIGNATURE_SHORT 'S'
1126 #define JVM_SIGNATURE_VOID 'V'
1127 #define JVM_SIGNATURE_BOOLEAN 'Z'
1129 /*
1130 * A function defined by the byte-code verifier and called by the VM.
1131 * This is not a function implemented in the VM.
1132 *
1133 * Returns JNI_FALSE if verification fails. A detailed error message
1134 * will be places in msg_buf, whose length is specified by buf_len.
1135 */
1136 typedef jboolean (*verifier_fn_t)(JNIEnv *env,
1137 jclass cb,
1138 char * msg_buf,
1139 jint buf_len);
1142 /*
1143 * Support for a VM-independent class format checker.
1144 */
1145 typedef struct {
1146 unsigned long code; /* byte code */
1147 unsigned long excs; /* exceptions */
1148 unsigned long etab; /* catch table */
1149 unsigned long lnum; /* line number */
1150 unsigned long lvar; /* local vars */
1151 } method_size_info;
1153 typedef struct {
1154 unsigned int constants; /* constant pool */
1155 unsigned int fields;
1156 unsigned int methods;
1157 unsigned int interfaces;
1158 unsigned int fields2; /* number of static 2-word fields */
1159 unsigned int innerclasses; /* # of records in InnerClasses attr */
1161 method_size_info clinit; /* memory used in clinit */
1162 method_size_info main; /* used everywhere else */
1163 } class_size_info;
1165 /*
1166 * Functions defined in libjava.so to perform string conversions.
1167 *
1168 */
1170 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str);
1172 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b);
1174 /* This is the function defined in libjava.so that performs class
1175 * format checks. This functions fills in size information about
1176 * the class file and returns:
1177 *
1178 * 0: good
1179 * -1: out of memory
1180 * -2: bad format
1181 * -3: unsupported version
1182 * -4: bad class name
1183 */
1185 typedef jint (*check_format_fn_t)(char *class_name,
1186 unsigned char *data,
1187 unsigned int data_size,
1188 class_size_info *class_size,
1189 char *message_buffer,
1190 jint buffer_length,
1191 jboolean measure_only,
1192 jboolean check_relaxed);
1194 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
1195 JVM_ACC_FINAL | \
1196 JVM_ACC_SUPER | \
1197 JVM_ACC_INTERFACE | \
1198 JVM_ACC_ABSTRACT | \
1199 JVM_ACC_ANNOTATION | \
1200 JVM_ACC_ENUM | \
1201 JVM_ACC_SYNTHETIC)
1203 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
1204 JVM_ACC_PRIVATE | \
1205 JVM_ACC_PROTECTED | \
1206 JVM_ACC_STATIC | \
1207 JVM_ACC_FINAL | \
1208 JVM_ACC_VOLATILE | \
1209 JVM_ACC_TRANSIENT | \
1210 JVM_ACC_ENUM | \
1211 JVM_ACC_SYNTHETIC)
1213 #define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
1214 JVM_ACC_PRIVATE | \
1215 JVM_ACC_PROTECTED | \
1216 JVM_ACC_STATIC | \
1217 JVM_ACC_FINAL | \
1218 JVM_ACC_SYNCHRONIZED | \
1219 JVM_ACC_BRIDGE | \
1220 JVM_ACC_VARARGS | \
1221 JVM_ACC_NATIVE | \
1222 JVM_ACC_ABSTRACT | \
1223 JVM_ACC_STRICT | \
1224 JVM_ACC_SYNTHETIC)
1226 /*
1227 * This is the function defined in libjava.so to perform path
1228 * canonicalization. VM call this function before opening jar files
1229 * to load system classes.
1230 *
1231 */
1233 typedef int (*canonicalize_fn_t)(JNIEnv *env, char *orig, char *out, int len);
1235 /*************************************************************************
1236 PART 3: I/O and Network Support
1237 ************************************************************************/
1239 /* Note that the JVM IO functions are expected to return JVM_IO_ERR
1240 * when there is any kind of error. The caller can then use the
1241 * platform specific support (e.g., errno) to get the detailed
1242 * error info. The JVM_GetLastErrorString procedure may also be used
1243 * to obtain a descriptive error string.
1244 */
1245 #define JVM_IO_ERR (-1)
1247 /* For interruptible IO. Returning JVM_IO_INTR indicates that an IO
1248 * operation has been disrupted by Thread.interrupt. There are a
1249 * number of technical difficulties related to interruptible IO that
1250 * need to be solved. For example, most existing programs do not handle
1251 * InterruptedIOExceptions specially, they simply treat those as any
1252 * IOExceptions, which typically indicate fatal errors.
1253 *
1254 * There are also two modes of operation for interruptible IO. In the
1255 * resumption mode, an interrupted IO operation is guaranteed not to
1256 * have any side-effects, and can be restarted. In the termination mode,
1257 * an interrupted IO operation corrupts the underlying IO stream, so
1258 * that the only reasonable operation on an interrupted stream is to
1259 * close that stream. The resumption mode seems to be impossible to
1260 * implement on Win32 and Solaris. Implementing the termination mode is
1261 * easier, but it's not clear that's the right semantics.
1262 *
1263 * Interruptible IO is not supported on Win32.It can be enabled/disabled
1264 * using a compile-time flag on Solaris. Third-party JVM ports do not
1265 * need to implement interruptible IO.
1266 */
1267 #define JVM_IO_INTR (-2)
1269 /* Write a string into the given buffer, in the platform's local encoding,
1270 * that describes the most recent system-level error to occur in this thread.
1271 * Return the length of the string or zero if no error occurred.
1272 */
1273 JNIEXPORT jint JNICALL
1274 JVM_GetLastErrorString(char *buf, int len);
1276 /*
1277 * Convert a pathname into native format. This function does syntactic
1278 * cleanup, such as removing redundant separator characters. It modifies
1279 * the given pathname string in place.
1280 */
1281 JNIEXPORT char * JNICALL
1282 JVM_NativePath(char *);
1284 /*
1285 * JVM I/O error codes
1286 */
1287 #define JVM_EEXIST -100
1289 /*
1290 * Open a file descriptor. This function returns a negative error code
1291 * on error, and a non-negative integer that is the file descriptor on
1292 * success.
1293 */
1294 JNIEXPORT jint JNICALL
1295 JVM_Open(const char *fname, jint flags, jint mode);
1297 /*
1298 * Close a file descriptor. This function returns -1 on error, and 0
1299 * on success.
1300 *
1301 * fd the file descriptor to close.
1302 */
1303 JNIEXPORT jint JNICALL
1304 JVM_Close(jint fd);
1306 /*
1307 * Read data from a file decriptor into a char array.
1308 *
1309 * fd the file descriptor to read from.
1310 * buf the buffer where to put the read data.
1311 * nbytes the number of bytes to read.
1312 *
1313 * This function returns -1 on error, and 0 on success.
1314 */
1315 JNIEXPORT jint JNICALL
1316 JVM_Read(jint fd, char *buf, jint nbytes);
1318 /*
1319 * Write data from a char array to a file decriptor.
1320 *
1321 * fd the file descriptor to read from.
1322 * buf the buffer from which to fetch the data.
1323 * nbytes the number of bytes to write.
1324 *
1325 * This function returns -1 on error, and 0 on success.
1326 */
1327 JNIEXPORT jint JNICALL
1328 JVM_Write(jint fd, char *buf, jint nbytes);
1330 /*
1331 * Returns the number of bytes available for reading from a given file
1332 * descriptor
1333 */
1334 JNIEXPORT jint JNICALL
1335 JVM_Available(jint fd, jlong *pbytes);
1337 /*
1338 * Move the file descriptor pointer from whence by offset.
1339 *
1340 * fd the file descriptor to move.
1341 * offset the number of bytes to move it by.
1342 * whence the start from where to move it.
1343 *
1344 * This function returns the resulting pointer location.
1345 */
1346 JNIEXPORT jlong JNICALL
1347 JVM_Lseek(jint fd, jlong offset, jint whence);
1349 /*
1350 * Set the length of the file associated with the given descriptor to the given
1351 * length. If the new length is longer than the current length then the file
1352 * is extended; the contents of the extended portion are not defined. The
1353 * value of the file pointer is undefined after this procedure returns.
1354 */
1355 JNIEXPORT jint JNICALL
1356 JVM_SetLength(jint fd, jlong length);
1358 /*
1359 * Synchronize the file descriptor's in memory state with that of the
1360 * physical device. Return of -1 is an error, 0 is OK.
1361 */
1362 JNIEXPORT jint JNICALL
1363 JVM_Sync(jint fd);
1365 /*
1366 * Networking library support
1367 */
1369 JNIEXPORT jint JNICALL
1370 JVM_InitializeSocketLibrary(void);
1372 struct sockaddr;
1374 JNIEXPORT jint JNICALL
1375 JVM_Socket(jint domain, jint type, jint protocol);
1377 JNIEXPORT jint JNICALL
1378 JVM_SocketClose(jint fd);
1380 JNIEXPORT jint JNICALL
1381 JVM_SocketShutdown(jint fd, jint howto);
1383 JNIEXPORT jint JNICALL
1384 JVM_Recv(jint fd, char *buf, jint nBytes, jint flags);
1386 JNIEXPORT jint JNICALL
1387 JVM_Send(jint fd, char *buf, jint nBytes, jint flags);
1389 JNIEXPORT jint JNICALL
1390 JVM_Timeout(int fd, long timeout);
1392 JNIEXPORT jint JNICALL
1393 JVM_Listen(jint fd, jint count);
1395 JNIEXPORT jint JNICALL
1396 JVM_Connect(jint fd, struct sockaddr *him, jint len);
1398 JNIEXPORT jint JNICALL
1399 JVM_Bind(jint fd, struct sockaddr *him, jint len);
1401 JNIEXPORT jint JNICALL
1402 JVM_Accept(jint fd, struct sockaddr *him, jint *len);
1404 JNIEXPORT jint JNICALL
1405 JVM_RecvFrom(jint fd, char *buf, int nBytes,
1406 int flags, struct sockaddr *from, int *fromlen);
1408 JNIEXPORT jint JNICALL
1409 JVM_SendTo(jint fd, char *buf, int len,
1410 int flags, struct sockaddr *to, int tolen);
1412 JNIEXPORT jint JNICALL
1413 JVM_SocketAvailable(jint fd, jint *result);
1416 JNIEXPORT jint JNICALL
1417 JVM_GetSockName(jint fd, struct sockaddr *him, int *len);
1419 JNIEXPORT jint JNICALL
1420 JVM_GetSockOpt(jint fd, int level, int optname, char *optval, int *optlen);
1422 JNIEXPORT jint JNICALL
1423 JVM_SetSockOpt(jint fd, int level, int optname, const char *optval, int optlen);
1425 JNIEXPORT int JNICALL
1426 JVM_GetHostName(char* name, int namelen);
1428 /*
1429 * The standard printing functions supported by the Java VM. (Should they
1430 * be renamed to JVM_* in the future?
1431 */
1433 /*
1434 * BE CAREFUL! The following functions do not implement the
1435 * full feature set of standard C printf formats.
1436 */
1437 JNIEXPORT int
1438 jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
1440 JNIEXPORT int
1441 jio_snprintf(char *str, size_t count, const char *fmt, ...);
1443 JNIEXPORT int
1444 jio_fprintf(FILE *, const char *fmt, ...);
1446 JNIEXPORT int
1447 jio_vfprintf(FILE *, const char *fmt, va_list args);
1450 JNIEXPORT void * JNICALL
1451 JVM_RawMonitorCreate(void);
1453 JNIEXPORT void JNICALL
1454 JVM_RawMonitorDestroy(void *mon);
1456 JNIEXPORT jint JNICALL
1457 JVM_RawMonitorEnter(void *mon);
1459 JNIEXPORT void JNICALL
1460 JVM_RawMonitorExit(void *mon);
1462 /*
1463 * java.lang.reflect.Method
1464 */
1465 JNIEXPORT jobject JNICALL
1466 JVM_InvokeMethod(JNIEnv *env, jobject method, jobject obj, jobjectArray args0);
1468 /*
1469 * java.lang.reflect.Constructor
1470 */
1471 JNIEXPORT jobject JNICALL
1472 JVM_NewInstanceFromConstructor(JNIEnv *env, jobject c, jobjectArray args0);
1474 /*
1475 * java.lang.management support
1476 */
1477 JNIEXPORT void* JNICALL
1478 JVM_GetManagement(jint version);
1480 /*
1481 * com.sun.tools.attach.VirtualMachine support
1482 *
1483 * Initialize the agent properties with the properties maintained in the VM.
1484 */
1485 JNIEXPORT jobject JNICALL
1486 JVM_InitAgentProperties(JNIEnv *env, jobject agent_props);
1488 /* Generics reflection support.
1489 *
1490 * Returns information about the given class's EnclosingMethod
1491 * attribute, if present, or null if the class had no enclosing
1492 * method.
1493 *
1494 * If non-null, the returned array contains three elements. Element 0
1495 * is the java.lang.Class of which the enclosing method is a member,
1496 * and elements 1 and 2 are the java.lang.Strings for the enclosing
1497 * method's name and descriptor, respectively.
1498 */
1499 JNIEXPORT jobjectArray JNICALL
1500 JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);
1502 /*
1503 * Java thread state support
1504 */
1505 enum {
1506 JAVA_THREAD_STATE_NEW = 0,
1507 JAVA_THREAD_STATE_RUNNABLE = 1,
1508 JAVA_THREAD_STATE_BLOCKED = 2,
1509 JAVA_THREAD_STATE_WAITING = 3,
1510 JAVA_THREAD_STATE_TIMED_WAITING = 4,
1511 JAVA_THREAD_STATE_TERMINATED = 5,
1512 JAVA_THREAD_STATE_COUNT = 6
1513 };
1515 /*
1516 * Returns an array of the threadStatus values representing the
1517 * given Java thread state. Returns NULL if the VM version is
1518 * incompatible with the JDK or doesn't support the given
1519 * Java thread state.
1520 */
1521 JNIEXPORT jintArray JNICALL
1522 JVM_GetThreadStateValues(JNIEnv* env, jint javaThreadState);
1524 /*
1525 * Returns an array of the substate names representing the
1526 * given Java thread state. Returns NULL if the VM version is
1527 * incompatible with the JDK or the VM doesn't support
1528 * the given Java thread state.
1529 * values must be the jintArray returned from JVM_GetThreadStateValues
1530 * and javaThreadState.
1531 */
1532 JNIEXPORT jobjectArray JNICALL
1533 JVM_GetThreadStateNames(JNIEnv* env, jint javaThreadState, jintArray values);
1535 /* =========================================================================
1536 * The following defines a private JVM interface that the JDK can query
1537 * for the JVM version and capabilities. sun.misc.Version defines
1538 * the methods for getting the VM version and its capabilities.
1539 *
1540 * When a new bit is added, the following should be updated to provide
1541 * access to the new capability:
1542 * HS: JVM_GetVersionInfo and Abstract_VM_Version class
1543 * SDK: Version class
1544 *
1545 * Similary, a private JDK interface JDK_GetVersionInfo0 is defined for
1546 * JVM to query for the JDK version and capabilities.
1547 *
1548 * When a new bit is added, the following should be updated to provide
1549 * access to the new capability:
1550 * HS: JDK_Version class
1551 * SDK: JDK_GetVersionInfo0
1552 *
1553 * ==========================================================================
1554 */
1555 typedef struct {
1556 /* HotSpot Express VM version string:
1557 * <major>.<minor>-bxx[-<identifier>][-<debug_flavor>]
1558 */
1559 unsigned int jvm_version; /* Consists of major.minor.0.build */
1560 unsigned int update_version : 8; /* 0 in HotSpot Express VM */
1561 unsigned int special_update_version : 8; /* 0 in HotSpot Express VM */
1562 unsigned int reserved1 : 16;
1563 unsigned int reserved2;
1565 /* The following bits represents JVM supports that JDK has dependency on.
1566 * JDK can use these bits to determine which JVM version
1567 * and support it has to maintain runtime compatibility.
1568 *
1569 * When a new bit is added in a minor or update release, make sure
1570 * the new bit is also added in the main/baseline.
1571 */
1572 unsigned int is_attachable : 1;
1573 unsigned int : 31;
1574 unsigned int : 32;
1575 unsigned int : 32;
1576 } jvm_version_info;
1578 #define JVM_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1579 #define JVM_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1580 // Micro version is 0 in HotSpot Express VM (set in jvm.cpp).
1581 #define JVM_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1582 /* Build number is available in all HotSpot Express VM builds.
1583 * It is defined in make/hotspot_version file.
1584 */
1585 #define JVM_VERSION_BUILD(version) ((version & 0x000000FF))
1587 JNIEXPORT void JNICALL
1588 JVM_GetVersionInfo(JNIEnv* env, jvm_version_info* info, size_t info_size);
1590 typedef struct {
1591 // Naming convention of RE build version string: n.n.n[_uu[c]][-<identifier>]-bxx
1592 unsigned int jdk_version; /* Consists of major, minor, micro (n.n.n) */
1593 /* and build number (xx) */
1594 unsigned int update_version : 8; /* Update release version (uu) */
1595 unsigned int special_update_version : 8; /* Special update release version (c)*/
1596 unsigned int reserved1 : 16;
1597 unsigned int reserved2;
1599 /* The following bits represents new JDK supports that VM has dependency on.
1600 * VM implementation can use these bits to determine which JDK version
1601 * and support it has to maintain runtime compatibility.
1602 *
1603 * When a new bit is added in a minor or update release, make sure
1604 * the new bit is also added in the main/baseline.
1605 */
1606 unsigned int thread_park_blocker : 1;
1607 unsigned int post_vm_init_hook_enabled : 1;
1608 unsigned int pending_list_uses_discovered_field : 1;
1609 unsigned int : 29;
1610 unsigned int : 32;
1611 unsigned int : 32;
1612 } jdk_version_info;
1614 #define JDK_VERSION_MAJOR(version) ((version & 0xFF000000) >> 24)
1615 #define JDK_VERSION_MINOR(version) ((version & 0x00FF0000) >> 16)
1616 #define JDK_VERSION_MICRO(version) ((version & 0x0000FF00) >> 8)
1618 /* Build number is available only for RE build (i.e. JDK_BUILD_NUMBER is set to bNN)
1619 * It will be zero for internal builds.
1620 */
1621 #define JDK_VERSION_BUILD(version) ((version & 0x000000FF))
1623 /*
1624 * This is the function JDK_GetVersionInfo0 defined in libjava.so
1625 * that is dynamically looked up by JVM.
1626 */
1627 typedef void (*jdk_version_info_fn_t)(jdk_version_info* info, size_t info_size);
1629 /*
1630 * This structure is used by the launcher to get the default thread
1631 * stack size from the VM using JNI_GetDefaultJavaVMInitArgs() with a
1632 * version of 1.1. As it is not supported otherwise, it has been removed
1633 * from jni.h
1634 */
1635 typedef struct JDK1_1InitArgs {
1636 jint version;
1638 char **properties;
1639 jint checkSource;
1640 jint nativeStackSize;
1641 jint javaStackSize;
1642 jint minHeapSize;
1643 jint maxHeapSize;
1644 jint verifyMode;
1645 char *classpath;
1647 jint (JNICALL *vfprintf)(FILE *fp, const char *format, va_list args);
1648 void (JNICALL *exit)(jint code);
1649 void (JNICALL *abort)(void);
1651 jint enableClassGC;
1652 jint enableVerboseGC;
1653 jint disableAsyncGC;
1654 jint verbose;
1655 jboolean debugging;
1656 jint debugPort;
1657 } JDK1_1InitArgs;
1659 #ifdef __cplusplus
1660 } /* extern "C" */
1661 #endif /* __cplusplus */
1663 #endif /* !_JAVASOFT_JVM_H_ */
1665 #endif // SHARE_VM_PRIMS_JVM_H
