1 /*

     2  * Copyright (c) 1997, 2017, 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  */

    24 

    25 #ifndef SHARE_VM_PRIMS_JVM_H

    26 #define SHARE_VM_PRIMS_JVM_H

    27 

    28 #include "jni.h"

    29 #include "utilities/macros.hpp"

    30 

    31 #include OS_HEADER_H(jvm)

    32 

    33 #ifndef _JAVASOFT_JVM_H_

    34 #define _JAVASOFT_JVM_H_

    35 

    36 // HotSpot integration note:

    37 //

    38 // This file and jvm.h used with the JDK are identical,

    39 // except for the three includes removed below

    40 

    41 // #include <sys/stat.h>

    42 // #include "jni.h"

    43 // #include "jvm_md.h"

    44 

    45 

    46 #ifdef __cplusplus

    47 extern "C" {

    48 #endif

    49 

    50 /*

    51  * This file contains additional functions exported from the VM.

    52  * These functions are complementary to the standard JNI support.

    53  * There are three parts to this file:

    54  *

    55  * First, this file contains the VM-related functions needed by native

    56  * libraries in the standard Java API. For example, the java.lang.Object

    57  * class needs VM-level functions that wait for and notify monitors.

    58  *

    59  * Second, this file contains the functions and constant definitions

    60  * needed by the byte code verifier and class file format checker.

    61  * These functions allow the verifier and format checker to be written

    62  * in a VM-independent way.

    63  *

    64  * Third, this file contains various I/O and nerwork operations needed

    65  * by the standard Java I/O and network APIs.

    66  */

    67 

    68 /*

    69  * Bump the version number when either of the following happens:

    70  *

    71  * 1. There is a change in JVM_* functions.

    72  *

    73  * 2. There is a change in the contract between VM and Java classes.

    74  *    For example, if the VM relies on a new private field in Thread

    75  *    class.

    76  */

    77 

    78 #define JVM_INTERFACE_VERSION 5

    79 

    80 JNIEXPORT jobjectArray JNICALL

    81 JVM_GetMethodParameters(JNIEnv *env, jobject method);

    82 

    83 JNIEXPORT jint JNICALL

    84 JVM_GetInterfaceVersion(void);

    85 

    86 /*************************************************************************

    87  PART 1: Functions for Native Libraries

    88  ************************************************************************/

    89 /*

    90  * java.lang.Object

    91  */

    92 JNIEXPORT jint JNICALL

    93 JVM_IHashCode(JNIEnv *env, jobject obj);

    94 

    95 JNIEXPORT void JNICALL

    96 JVM_MonitorWait(JNIEnv *env, jobject obj, jlong ms);

    97 

    98 JNIEXPORT void JNICALL

    99 JVM_MonitorNotify(JNIEnv *env, jobject obj);

   100 

   101 JNIEXPORT void JNICALL

   102 JVM_MonitorNotifyAll(JNIEnv *env, jobject obj);

   103 

   104 JNIEXPORT jobject JNICALL

   105 JVM_Clone(JNIEnv *env, jobject obj);

   106 

   107 /*

   108  * java.lang.String

   109  */

   110 JNIEXPORT jstring JNICALL

   111 JVM_InternString(JNIEnv *env, jstring str);

   112 

   113 /*

   114  * java.lang.System

   115  */

   116 JNIEXPORT jlong JNICALL

   117 JVM_CurrentTimeMillis(JNIEnv *env, jclass ignored);

   118 

   119 JNIEXPORT jlong JNICALL

   120 JVM_NanoTime(JNIEnv *env, jclass ignored);

   121 

   122 JNIEXPORT jlong JNICALL

   123 JVM_GetNanoTimeAdjustment(JNIEnv *env, jclass ignored, jlong offset_secs);

   124 

   125 JNIEXPORT void JNICALL

   126 JVM_ArrayCopy(JNIEnv *env, jclass ignored, jobject src, jint src_pos,

   127               jobject dst, jint dst_pos, jint length);

   128 

   129 JNIEXPORT jobject JNICALL

   130 JVM_InitProperties(JNIEnv *env, jobject p);

   131 

   132 /*

   133  * java.lang.Runtime

   134  */

   135 

   136 JNIEXPORT void JNICALL

   137 JVM_Halt(jint code);

   138 

   139 JNIEXPORT void JNICALL

   140 JVM_GC(void);

   141 

   142 /* Returns the number of real-time milliseconds that have elapsed since the

   143  * least-recently-inspected heap object was last inspected by the garbage

   144  * collector.

   145  *

   146  * For simple stop-the-world collectors this value is just the time

   147  * since the most recent collection.  For generational collectors it is the

   148  * time since the oldest generation was most recently collected.  Other

   149  * collectors are free to return a pessimistic estimate of the elapsed time, or

   150  * simply the time since the last full collection was performed.

   151  *

   152  * Note that in the presence of reference objects, a given object that is no

   153  * longer strongly reachable may have to be inspected multiple times before it

   154  * can be reclaimed.

   155  */

   156 JNIEXPORT jlong JNICALL

   157 JVM_MaxObjectInspectionAge(void);

   158 

   159 JNIEXPORT jlong JNICALL

   160 JVM_TotalMemory(void);

   161 

   162 JNIEXPORT jlong JNICALL

   163 JVM_FreeMemory(void);

   164 

   165 JNIEXPORT jlong JNICALL

   166 JVM_MaxMemory(void);

   167 

   168 JNIEXPORT jint JNICALL

   169 JVM_ActiveProcessorCount(void);

   170 

   171 JNIEXPORT void * JNICALL

   172 JVM_LoadLibrary(const char *name);

   173 

   174 JNIEXPORT void JNICALL

   175 JVM_UnloadLibrary(void * handle);

   176 

   177 JNIEXPORT void * JNICALL

   178 JVM_FindLibraryEntry(void *handle, const char *name);

   179 

   180 JNIEXPORT jboolean JNICALL

   181 JVM_IsSupportedJNIVersion(jint version);

   182 

   183 JNIEXPORT jobjectArray JNICALL

   184 JVM_GetVmArguments(JNIEnv *env);

   185 

   186 /*

   187  * java.lang.Throwable

   188  */

   189 JNIEXPORT void JNICALL

   190 JVM_FillInStackTrace(JNIEnv *env, jobject throwable);

   191 

   192 /*

   193  * java.lang.StackTraceElement

   194  */

   195 JNIEXPORT void JNICALL

   196 JVM_InitStackTraceElementArray(JNIEnv *env, jobjectArray elements, jobject throwable);

   197 

   198 JNIEXPORT void JNICALL

   199 JVM_InitStackTraceElement(JNIEnv* env, jobject element, jobject stackFrameInfo);

   200 

   201 /*

   202  * java.lang.StackWalker

   203  */

   204 enum {

   205   JVM_STACKWALK_FILL_CLASS_REFS_ONLY       = 0x02,

   206   JVM_STACKWALK_GET_CALLER_CLASS           = 0x04,

   207   JVM_STACKWALK_SHOW_HIDDEN_FRAMES         = 0x20,

   208   JVM_STACKWALK_FILL_LIVE_STACK_FRAMES     = 0x100

   209 };

   210 

   211 JNIEXPORT jobject JNICALL

   212 JVM_CallStackWalk(JNIEnv *env, jobject stackStream, jlong mode,

   213                   jint skip_frames, jint frame_count, jint start_index,

   214                   jobjectArray frames);

   215 

   216 JNIEXPORT jint JNICALL

   217 JVM_MoreStackWalk(JNIEnv *env, jobject stackStream, jlong mode, jlong anchor,

   218                   jint frame_count, jint start_index,

   219                   jobjectArray frames);

   220 

   221 /*

   222  * java.lang.Thread

   223  */

   224 JNIEXPORT void JNICALL

   225 JVM_StartThread(JNIEnv *env, jobject thread);

   226 

   227 JNIEXPORT void JNICALL

   228 JVM_StopThread(JNIEnv *env, jobject thread, jobject exception);

   229 

   230 JNIEXPORT jboolean JNICALL

   231 JVM_IsThreadAlive(JNIEnv *env, jobject thread);

   232 

   233 JNIEXPORT void JNICALL

   234 JVM_SuspendThread(JNIEnv *env, jobject thread);

   235 

   236 JNIEXPORT void JNICALL

   237 JVM_ResumeThread(JNIEnv *env, jobject thread);

   238 

   239 JNIEXPORT void JNICALL

   240 JVM_SetThreadPriority(JNIEnv *env, jobject thread, jint prio);

   241 

   242 JNIEXPORT void JNICALL

   243 JVM_Yield(JNIEnv *env, jclass threadClass);

   244 

   245 JNIEXPORT void JNICALL

   246 JVM_Sleep(JNIEnv *env, jclass threadClass, jlong millis);

   247 

   248 JNIEXPORT jobject JNICALL

   249 JVM_CurrentThread(JNIEnv *env, jclass threadClass);

   250 

   251 JNIEXPORT jint JNICALL

   252 JVM_CountStackFrames(JNIEnv *env, jobject thread);

   253 

   254 JNIEXPORT void JNICALL

   255 JVM_Interrupt(JNIEnv *env, jobject thread);

   256 

   257 JNIEXPORT jboolean JNICALL

   258 JVM_IsInterrupted(JNIEnv *env, jobject thread, jboolean clearInterrupted);

   259 

   260 JNIEXPORT jboolean JNICALL

   261 JVM_HoldsLock(JNIEnv *env, jclass threadClass, jobject obj);

   262 

   263 JNIEXPORT void JNICALL

   264 JVM_DumpAllStacks(JNIEnv *env, jclass unused);

   265 

   266 JNIEXPORT jobjectArray JNICALL

   267 JVM_GetAllThreads(JNIEnv *env, jclass dummy);

   268 

   269 JNIEXPORT void JNICALL

   270 JVM_SetNativeThreadName(JNIEnv *env, jobject jthread, jstring name);

   271 

   272 /* getStackTrace() and getAllStackTraces() method */

   273 JNIEXPORT jobjectArray JNICALL

   274 JVM_DumpThreads(JNIEnv *env, jclass threadClass, jobjectArray threads);

   275 

   276 /*

   277  * java.lang.SecurityManager

   278  */

   279 JNIEXPORT jclass JNICALL

   280 JVM_CurrentLoadedClass(JNIEnv *env);

   281 

   282 JNIEXPORT jobject JNICALL

   283 JVM_CurrentClassLoader(JNIEnv *env);

   284 

   285 JNIEXPORT jobjectArray JNICALL

   286 JVM_GetClassContext(JNIEnv *env);

   287 

   288 JNIEXPORT jint JNICALL

   289 JVM_ClassDepth(JNIEnv *env, jstring name);

   290 

   291 JNIEXPORT jint JNICALL

   292 JVM_ClassLoaderDepth(JNIEnv *env);

   293 

   294 /*

   295  * java.lang.Package

   296  */

   297 JNIEXPORT jstring JNICALL

   298 JVM_GetSystemPackage(JNIEnv *env, jstring name);

   299 

   300 JNIEXPORT jobjectArray JNICALL

   301 JVM_GetSystemPackages(JNIEnv *env);

   302 

   303 /*

   304  * java.lang.ref.Reference

   305  */

   306 JNIEXPORT jobject JNICALL

   307 JVM_GetAndClearReferencePendingList(JNIEnv *env);

   308 

   309 JNIEXPORT jboolean JNICALL

   310 JVM_HasReferencePendingList(JNIEnv *env);

   311 

   312 JNIEXPORT void JNICALL

   313 JVM_WaitForReferencePendingList(JNIEnv *env);

   314 

   315 /*

   316  * java.io.ObjectInputStream

   317  */

   318 JNIEXPORT jobject JNICALL

   319 JVM_LatestUserDefinedLoader(JNIEnv *env);

   320 

   321 /*

   322  * java.lang.reflect.Array

   323  */

   324 JNIEXPORT jint JNICALL

   325 JVM_GetArrayLength(JNIEnv *env, jobject arr);

   326 

   327 JNIEXPORT jobject JNICALL

   328 JVM_GetArrayElement(JNIEnv *env, jobject arr, jint index);

   329 

   330 JNIEXPORT jvalue JNICALL

   331 JVM_GetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jint wCode);

   332 

   333 JNIEXPORT void JNICALL

   334 JVM_SetArrayElement(JNIEnv *env, jobject arr, jint index, jobject val);

   335 

   336 JNIEXPORT void JNICALL

   337 JVM_SetPrimitiveArrayElement(JNIEnv *env, jobject arr, jint index, jvalue v,

   338                              unsigned char vCode);

   339 

   340 JNIEXPORT jobject JNICALL

   341 JVM_NewArray(JNIEnv *env, jclass eltClass, jint length);

   342 

   343 JNIEXPORT jobject JNICALL

   344 JVM_NewMultiArray(JNIEnv *env, jclass eltClass, jintArray dim);

   345 

   346 /*

   347  * java.lang.Class and java.lang.ClassLoader

   348  */

   349 

   350 #define JVM_CALLER_DEPTH -1

   351 

   352 /*

   353  * Returns the class in which the code invoking the native method

   354  * belongs.

   355  *

   356  * Note that in JDK 1.1, native methods did not create a frame.

   357  * In 1.2, they do. Therefore native methods like Class.forName

   358  * can no longer look at the current frame for the caller class.

   359  */

   360 JNIEXPORT jclass JNICALL

   361 JVM_GetCallerClass(JNIEnv *env, int n);

   362 

   363 /*

   364  * Find primitive classes

   365  * utf: class name

   366  */

   367 JNIEXPORT jclass JNICALL

   368 JVM_FindPrimitiveClass(JNIEnv *env, const char *utf);

   369 

   370 /*

   371  * Find a class from a boot class loader. Returns NULL if class not found.

   372  */

   373 JNIEXPORT jclass JNICALL

   374 JVM_FindClassFromBootLoader(JNIEnv *env, const char *name);

   375 

   376 /*

   377  * Find a class from a given class loader.  Throws ClassNotFoundException.

   378  *  name:   name of class

   379  *  init:   whether initialization is done

   380  *  loader: class loader to look up the class. This may not be the same as the caller's

   381  *          class loader.

   382  *  caller: initiating class. The initiating class may be null when a security

   383  *          manager is not installed.

   384  */

   385 JNIEXPORT jclass JNICALL

   386 JVM_FindClassFromCaller(JNIEnv *env, const char *name, jboolean init,

   387                         jobject loader, jclass caller);

   388 

   389 /*

   390  * Find a class from a given class.

   391  */

   392 JNIEXPORT jclass JNICALL

   393 JVM_FindClassFromClass(JNIEnv *env, const char *name, jboolean init,

   394                              jclass from);

   395 

   396 /* Find a loaded class cached by the VM */

   397 JNIEXPORT jclass JNICALL

   398 JVM_FindLoadedClass(JNIEnv *env, jobject loader, jstring name);

   399 

   400 /* Define a class */

   401 JNIEXPORT jclass JNICALL

   402 JVM_DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf,

   403                 jsize len, jobject pd);

   404 

   405 /* Define a class with a source (added in JDK1.5) */

   406 JNIEXPORT jclass JNICALL

   407 JVM_DefineClassWithSource(JNIEnv *env, const char *name, jobject loader,

   408                           const jbyte *buf, jsize len, jobject pd,

   409                           const char *source);

   410 

   411 /*

   412  * Module support funcions

   413  */

   414 

   415 /*

   416  * Define a module with the specified packages and bind the module to the

   417  * given class loader.

   418  *  module:       module to define

   419  *  is_open:      specifies if module is open (currently ignored)

   420  *  version:      the module version

   421  *  location:     the module location

   422  *  packages:     list of packages in the module

   423  *  num_packages: number of packages in the module

   424  */

   425 JNIEXPORT void JNICALL

   426 JVM_DefineModule(JNIEnv *env, jobject module, jboolean is_open, jstring version,

   427                  jstring location, const char* const* packages, jsize num_packages);

   428 

   429 /*

   430  * Set the boot loader's unnamed module.

   431  *  module: boot loader's unnamed module

   432  */

   433 JNIEXPORT void JNICALL

   434 JVM_SetBootLoaderUnnamedModule(JNIEnv *env, jobject module);

   435 

   436 /*

   437  * Do a qualified export of a package.

   438  *  from_module: module containing the package to export

   439  *  package:     name of the package to export

   440  *  to_module:   module to export the package to

   441  */

   442 JNIEXPORT void JNICALL

   443 JVM_AddModuleExports(JNIEnv *env, jobject from_module, const char* package, jobject to_module);

   444 

   445 /*

   446  * Do an export of a package to all unnamed modules.

   447  *  from_module: module containing the package to export

   448  *  package:     name of the package to export to all unnamed modules

   449  */

   450 JNIEXPORT void JNICALL

   451 JVM_AddModuleExportsToAllUnnamed(JNIEnv *env, jobject from_module, const char* package);

   452 

   453 /*

   454  * Do an unqualified export of a package.

   455  *  from_module: module containing the package to export

   456  *  package:     name of the package to export

   457  */

   458 JNIEXPORT void JNICALL

   459 JVM_AddModuleExportsToAll(JNIEnv *env, jobject from_module, const char* package);

   460 

   461 /*

   462  * Add a module to the list of modules that a given module can read.

   463  *  from_module:   module requesting read access

   464  *  source_module: module that from_module wants to read

   465  */

   466 JNIEXPORT void JNICALL

   467 JVM_AddReadsModule(JNIEnv *env, jobject from_module, jobject source_module);

   468 

   469 /*

   470  * Reflection support functions

   471  */

   472 

   473 JNIEXPORT jstring JNICALL

   474 JVM_GetClassName(JNIEnv *env, jclass cls);

   475 

   476 JNIEXPORT jobjectArray JNICALL

   477 JVM_GetClassInterfaces(JNIEnv *env, jclass cls);

   478 

   479 JNIEXPORT jboolean JNICALL

   480 JVM_IsInterface(JNIEnv *env, jclass cls);

   481 

   482 JNIEXPORT jobjectArray JNICALL

   483 JVM_GetClassSigners(JNIEnv *env, jclass cls);

   484 

   485 JNIEXPORT void JNICALL

   486 JVM_SetClassSigners(JNIEnv *env, jclass cls, jobjectArray signers);

   487 

   488 JNIEXPORT jobject JNICALL

   489 JVM_GetProtectionDomain(JNIEnv *env, jclass cls);

   490 

   491 JNIEXPORT jboolean JNICALL

   492 JVM_IsArrayClass(JNIEnv *env, jclass cls);

   493 

   494 JNIEXPORT jboolean JNICALL

   495 JVM_IsPrimitiveClass(JNIEnv *env, jclass cls);

   496 

   497 JNIEXPORT jint JNICALL

   498 JVM_GetClassModifiers(JNIEnv *env, jclass cls);

   499 

   500 JNIEXPORT jobjectArray JNICALL

   501 JVM_GetDeclaredClasses(JNIEnv *env, jclass ofClass);

   502 

   503 JNIEXPORT jclass JNICALL

   504 JVM_GetDeclaringClass(JNIEnv *env, jclass ofClass);

   505 

   506 JNIEXPORT jstring JNICALL

   507 JVM_GetSimpleBinaryName(JNIEnv *env, jclass ofClass);

   508 

   509 /* Generics support (JDK 1.5) */

   510 JNIEXPORT jstring JNICALL

   511 JVM_GetClassSignature(JNIEnv *env, jclass cls);

   512 

   513 /* Annotations support (JDK 1.5) */

   514 JNIEXPORT jbyteArray JNICALL

   515 JVM_GetClassAnnotations(JNIEnv *env, jclass cls);

   516 

   517 /* Annotations support (JDK 1.6) */

   518 

   519 /* Type use annotations support (JDK 1.8) */

   520 

   521 JNIEXPORT jbyteArray JNICALL

   522 JVM_GetClassTypeAnnotations(JNIEnv *env, jclass cls);

   523 

   524 // field is a handle to a java.lang.reflect.Field object

   525 JNIEXPORT jbyteArray JNICALL

   526 JVM_GetFieldTypeAnnotations(JNIEnv *env, jobject field);

   527 

   528 // method is a handle to a java.lang.reflect.Method object

   529 JNIEXPORT jbyteArray JNICALL

   530 JVM_GetMethodTypeAnnotations(JNIEnv *env, jobject method);

   531 

   532 /*

   533  * New (JDK 1.4) reflection implementation

   534  */

   535 

   536 JNIEXPORT jobjectArray JNICALL

   537 JVM_GetClassDeclaredMethods(JNIEnv *env, jclass ofClass, jboolean publicOnly);

   538 

   539 JNIEXPORT jobjectArray JNICALL

   540 JVM_GetClassDeclaredFields(JNIEnv *env, jclass ofClass, jboolean publicOnly);

   541 

   542 JNIEXPORT jobjectArray JNICALL

   543 JVM_GetClassDeclaredConstructors(JNIEnv *env, jclass ofClass, jboolean publicOnly);

   544 

   545 /* Differs from JVM_GetClassModifiers in treatment of inner classes.

   546    This returns the access flags for the class as specified in the

   547    class file rather than searching the InnerClasses attribute (if

   548    present) to find the source-level access flags. Only the values of

   549    the low 13 bits (i.e., a mask of 0x1FFF) are guaranteed to be

   550    valid. */

   551 JNIEXPORT jint JNICALL

   552 JVM_GetClassAccessFlags(JNIEnv *env, jclass cls);

   553 

   554 /*

   555  * Constant pool access; currently used to implement reflective access to annotations (JDK 1.5)

   556  */

   557 

   558 JNIEXPORT jobject JNICALL

   559 JVM_GetClassConstantPool(JNIEnv *env, jclass cls);

   560 

   561 JNIEXPORT jint JNICALL JVM_ConstantPoolGetSize

   562 (JNIEnv *env, jobject obj, jobject unused);

   563 

   564 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt

   565 (JNIEnv *env, jobject obj, jobject unused, jint index);

   566 

   567 JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded

   568 (JNIEnv *env, jobject obj, jobject unused, jint index);

   569 

   570 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt

   571 (JNIEnv *env, jobject obj, jobject unused, jint index);

   572 

   573 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAtIfLoaded

   574 (JNIEnv *env, jobject obj, jobject unused, jint index);

   575 

   576 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAt

   577 (JNIEnv *env, jobject obj, jobject unused, jint index);

   578 

   579 JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded

   580 (JNIEnv *env, jobject obj, jobject unused, jint index);

   581 

   582 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt

   583 (JNIEnv *env, jobject obj, jobject unused, jint index);

   584 

   585 JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetNameAndTypeRefInfoAt

   586 (JNIEnv *env, jobject obj, jobject unused, jint index);

   587 

   588 JNIEXPORT jint JNICALL JVM_ConstantPoolGetNameAndTypeRefIndexAt

   589 (JNIEnv *env, jobject obj, jobject unused, jint index);

   590 

   591 JNIEXPORT jint JNICALL JVM_ConstantPoolGetClassRefIndexAt

   592 (JNIEnv *env, jobject obj, jobject unused, jint index);

   593 

   594 JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt

   595 (JNIEnv *env, jobject obj, jobject unused, jint index);

   596 

   597 JNIEXPORT jlong JNICALL JVM_ConstantPoolGetLongAt

   598 (JNIEnv *env, jobject obj, jobject unused, jint index);

   599 

   600 JNIEXPORT jfloat JNICALL JVM_ConstantPoolGetFloatAt

   601 (JNIEnv *env, jobject obj, jobject unused, jint index);

   602 

   603 JNIEXPORT jdouble JNICALL JVM_ConstantPoolGetDoubleAt

   604 (JNIEnv *env, jobject obj, jobject unused, jint index);

   605 

   606 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt

   607 (JNIEnv *env, jobject obj, jobject unused, jint index);

   608 

   609 JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At

   610 (JNIEnv *env, jobject obj, jobject unused, jint index);

   611 

   612 JNIEXPORT jbyte JNICALL JVM_ConstantPoolGetTagAt

   613 (JNIEnv *env, jobject unused, jobject jcpool, jint index);

   614 

   615 /*

   616  * java.security.*

   617  */

   618 

   619 JNIEXPORT jobject JNICALL

   620 JVM_DoPrivileged(JNIEnv *env, jclass cls,

   621                  jobject action, jobject context, jboolean wrapException);

   622 

   623 JNIEXPORT jobject JNICALL

   624 JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);

   625 

   626 JNIEXPORT jobject JNICALL

   627 JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);

   628 

   629 /*

   630  * Signal support, used to implement the shutdown sequence.  Every VM must

   631  * support JVM_SIGINT and JVM_SIGTERM, raising the former for user interrupts

   632  * (^C) and the latter for external termination (kill, system shutdown, etc.).

   633  * Other platform-dependent signal values may also be supported.

   634  */

   635 

   636 JNIEXPORT void * JNICALL

   637 JVM_RegisterSignal(jint sig, void *handler);

   638 

   639 JNIEXPORT jboolean JNICALL

   640 JVM_RaiseSignal(jint sig);

   641 

   642 JNIEXPORT jint JNICALL

   643 JVM_FindSignal(const char *name);

   644 

   645 /*

   646  * Retrieve the assertion directives for the specified class.

   647  */

   648 JNIEXPORT jboolean JNICALL

   649 JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);

   650 

   651 /*

   652  * Retrieve the assertion directives from the VM.

   653  */

   654 JNIEXPORT jobject JNICALL

   655 JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);

   656 

   657 /*

   658  * java.util.concurrent.atomic.AtomicLong

   659  */

   660 JNIEXPORT jboolean JNICALL

   661 JVM_SupportsCX8(void);

   662 

   663 /*************************************************************************

   664  PART 2: Support for the Verifier and Class File Format Checker

   665  ************************************************************************/

   666 /*

   667  * Return the class name in UTF format. The result is valid

   668  * until JVM_ReleaseUTf is called.

   669  *

   670  * The caller must treat the string as a constant and not modify it

   671  * in any way.

   672  */

   673 JNIEXPORT const char * JNICALL

   674 JVM_GetClassNameUTF(JNIEnv *env, jclass cb);

   675 

   676 /*

   677  * Returns the constant pool types in the buffer provided by "types."

   678  */

   679 JNIEXPORT void JNICALL

   680 JVM_GetClassCPTypes(JNIEnv *env, jclass cb, unsigned char *types);

   681 

   682 /*

   683  * Returns the number of Constant Pool entries.

   684  */

   685 JNIEXPORT jint JNICALL

   686 JVM_GetClassCPEntriesCount(JNIEnv *env, jclass cb);

   687 

   688 /*

   689  * Returns the number of *declared* fields or methods.

   690  */

   691 JNIEXPORT jint JNICALL

   692 JVM_GetClassFieldsCount(JNIEnv *env, jclass cb);

   693 

   694 JNIEXPORT jint JNICALL

   695 JVM_GetClassMethodsCount(JNIEnv *env, jclass cb);

   696 

   697 /*

   698  * Returns the CP indexes of exceptions raised by a given method.

   699  * Places the result in the given buffer.

   700  *

   701  * The method is identified by method_index.

   702  */

   703 JNIEXPORT void JNICALL

   704 JVM_GetMethodIxExceptionIndexes(JNIEnv *env, jclass cb, jint method_index,

   705                                 unsigned short *exceptions);

   706 /*

   707  * Returns the number of exceptions raised by a given method.

   708  * The method is identified by method_index.

   709  */

   710 JNIEXPORT jint JNICALL

   711 JVM_GetMethodIxExceptionsCount(JNIEnv *env, jclass cb, jint method_index);

   712 

   713 /*

   714  * Returns the byte code sequence of a given method.

   715  * Places the result in the given buffer.

   716  *

   717  * The method is identified by method_index.

   718  */

   719 JNIEXPORT void JNICALL

   720 JVM_GetMethodIxByteCode(JNIEnv *env, jclass cb, jint method_index,

   721                         unsigned char *code);

   722 

   723 /*

   724  * Returns the length of the byte code sequence of a given method.

   725  * The method is identified by method_index.

   726  */

   727 JNIEXPORT jint JNICALL

   728 JVM_GetMethodIxByteCodeLength(JNIEnv *env, jclass cb, jint method_index);

   729 

   730 /*

   731  * A structure used to a capture exception table entry in a Java method.

   732  */

   733 typedef struct {

   734     jint start_pc;

   735     jint end_pc;

   736     jint handler_pc;

   737     jint catchType;

   738 } JVM_ExceptionTableEntryType;

   739 

   740 /*

   741  * Returns the exception table entry at entry_index of a given method.

   742  * Places the result in the given buffer.

   743  *

   744  * The method is identified by method_index.

   745  */

   746 JNIEXPORT void JNICALL

   747 JVM_GetMethodIxExceptionTableEntry(JNIEnv *env, jclass cb, jint method_index,

   748                                    jint entry_index,

   749                                    JVM_ExceptionTableEntryType *entry);

   750 

   751 /*

   752  * Returns the length of the exception table of a given method.

   753  * The method is identified by method_index.

   754  */

   755 JNIEXPORT jint JNICALL

   756 JVM_GetMethodIxExceptionTableLength(JNIEnv *env, jclass cb, int index);

   757 

   758 /*

   759  * Returns the modifiers of a given field.

   760  * The field is identified by field_index.

   761  */

   762 JNIEXPORT jint JNICALL

   763 JVM_GetFieldIxModifiers(JNIEnv *env, jclass cb, int index);

   764 

   765 /*

   766  * Returns the modifiers of a given method.

   767  * The method is identified by method_index.

   768  */

   769 JNIEXPORT jint JNICALL

   770 JVM_GetMethodIxModifiers(JNIEnv *env, jclass cb, int index);

   771 

   772 /*

   773  * Returns the number of local variables of a given method.

   774  * The method is identified by method_index.

   775  */

   776 JNIEXPORT jint JNICALL

   777 JVM_GetMethodIxLocalsCount(JNIEnv *env, jclass cb, int index);

   778 

   779 /*

   780  * Returns the number of arguments (including this pointer) of a given method.

   781  * The method is identified by method_index.

   782  */

   783 JNIEXPORT jint JNICALL

   784 JVM_GetMethodIxArgsSize(JNIEnv *env, jclass cb, int index);

   785 

   786 /*

   787  * Returns the maximum amount of stack (in words) used by a given method.

   788  * The method is identified by method_index.

   789  */

   790 JNIEXPORT jint JNICALL

   791 JVM_GetMethodIxMaxStack(JNIEnv *env, jclass cb, int index);

   792 

   793 /*

   794  * Is a given method a constructor.

   795  * The method is identified by method_index.

   796  */

   797 JNIEXPORT jboolean JNICALL

   798 JVM_IsConstructorIx(JNIEnv *env, jclass cb, int index);

   799 

   800 /*

   801  * Is the given method generated by the VM.

   802  * The method is identified by method_index.

   803  */

   804 JNIEXPORT jboolean JNICALL

   805 JVM_IsVMGeneratedMethodIx(JNIEnv *env, jclass cb, int index);

   806 

   807 /*

   808  * Returns the name of a given method in UTF format.

   809  * The result remains valid until JVM_ReleaseUTF is called.

   810  *

   811  * The caller must treat the string as a constant and not modify it

   812  * in any way.

   813  */

   814 JNIEXPORT const char * JNICALL

   815 JVM_GetMethodIxNameUTF(JNIEnv *env, jclass cb, jint index);

   816 

   817 /*

   818  * Returns the signature of a given method in UTF format.

   819  * The result remains valid until JVM_ReleaseUTF is called.

   820  *

   821  * The caller must treat the string as a constant and not modify it

   822  * in any way.

   823  */

   824 JNIEXPORT const char * JNICALL

   825 JVM_GetMethodIxSignatureUTF(JNIEnv *env, jclass cb, jint index);

   826 

   827 /*

   828  * Returns the name of the field refered to at a given constant pool

   829  * index.

   830  *

   831  * The result is in UTF format and remains valid until JVM_ReleaseUTF

   832  * is called.

   833  *

   834  * The caller must treat the string as a constant and not modify it

   835  * in any way.

   836  */

   837 JNIEXPORT const char * JNICALL

   838 JVM_GetCPFieldNameUTF(JNIEnv *env, jclass cb, jint index);

   839 

   840 /*

   841  * Returns the name of the method refered to at a given constant pool

   842  * index.

   843  *

   844  * The result is in UTF format and remains valid until JVM_ReleaseUTF

   845  * is called.

   846  *

   847  * The caller must treat the string as a constant and not modify it

   848  * in any way.

   849  */

   850 JNIEXPORT const char * JNICALL

   851 JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cb, jint index);

   852 

   853 /*

   854  * Returns the signature of the method refered to at a given constant pool

   855  * index.

   856  *

   857  * The result is in UTF format and remains valid until JVM_ReleaseUTF

   858  * is called.

   859  *

   860  * The caller must treat the string as a constant and not modify it

   861  * in any way.

   862  */

   863 JNIEXPORT const char * JNICALL

   864 JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cb, jint index);

   865 

   866 /*

   867  * Returns the signature of the field refered to at a given constant pool

   868  * index.

   869  *

   870  * The result is in UTF format and remains valid until JVM_ReleaseUTF

   871  * is called.

   872  *

   873  * The caller must treat the string as a constant and not modify it

   874  * in any way.

   875  */

   876 JNIEXPORT const char * JNICALL

   877 JVM_GetCPFieldSignatureUTF(JNIEnv *env, jclass cb, jint index);

   878 

   879 /*

   880  * Returns the class name refered to at a given constant pool index.

   881  *

   882  * The result is in UTF format and remains valid until JVM_ReleaseUTF

   883  * is called.

   884  *

   885  * The caller must treat the string as a constant and not modify it

   886  * in any way.

   887  */

   888 JNIEXPORT const char * JNICALL

   889 JVM_GetCPClassNameUTF(JNIEnv *env, jclass cb, jint index);

   890 

   891 /*

   892  * Returns the class name refered to at a given constant pool index.

   893  *

   894  * The constant pool entry must refer to a CONSTANT_Fieldref.

   895  *

   896  * The result is in UTF format and remains valid until JVM_ReleaseUTF

   897  * is called.

   898  *

   899  * The caller must treat the string as a constant and not modify it

   900  * in any way.

   901  */

   902 JNIEXPORT const char * JNICALL

   903 JVM_GetCPFieldClassNameUTF(JNIEnv *env, jclass cb, jint index);

   904 

   905 /*

   906  * Returns the class name refered to at a given constant pool index.

   907  *

   908  * The constant pool entry must refer to CONSTANT_Methodref or

   909  * CONSTANT_InterfaceMethodref.

   910  *

   911  * The result is in UTF format and remains valid until JVM_ReleaseUTF

   912  * is called.

   913  *

   914  * The caller must treat the string as a constant and not modify it

   915  * in any way.

   916  */

   917 JNIEXPORT const char * JNICALL

   918 JVM_GetCPMethodClassNameUTF(JNIEnv *env, jclass cb, jint index);

   919 

   920 /*

   921  * Returns the modifiers of a field in calledClass. The field is

   922  * referred to in class cb at constant pool entry index.

   923  *

   924  * The caller must treat the string as a constant and not modify it

   925  * in any way.

   926  *

   927  * Returns -1 if the field does not exist in calledClass.

   928  */

   929 JNIEXPORT jint JNICALL

   930 JVM_GetCPFieldModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);

   931 

   932 /*

   933  * Returns the modifiers of a method in calledClass. The method is

   934  * referred to in class cb at constant pool entry index.

   935  *

   936  * Returns -1 if the method does not exist in calledClass.

   937  */

   938 JNIEXPORT jint JNICALL

   939 JVM_GetCPMethodModifiers(JNIEnv *env, jclass cb, int index, jclass calledClass);

   940 

   941 /*

   942  * Releases the UTF string obtained from the VM.

   943  */

   944 JNIEXPORT void JNICALL

   945 JVM_ReleaseUTF(const char *utf);

   946 

   947 /*

   948  * Compare if two classes are in the same package.

   949  */

   950 JNIEXPORT jboolean JNICALL

   951 JVM_IsSameClassPackage(JNIEnv *env, jclass class1, jclass class2);

   952 

   953 /* Constants in class files */

   954 

   955 #define JVM_ACC_PUBLIC        0x0001  /* visible to everyone */

   956 #define JVM_ACC_PRIVATE       0x0002  /* visible only to the defining class */

   957 #define JVM_ACC_PROTECTED     0x0004  /* visible to subclasses */

   958 #define JVM_ACC_STATIC        0x0008  /* instance variable is static */

   959 #define JVM_ACC_FINAL         0x0010  /* no further subclassing, overriding */

   960 #define JVM_ACC_SYNCHRONIZED  0x0020  /* wrap method call in monitor lock */

   961 #define JVM_ACC_SUPER         0x0020  /* funky handling of invokespecial */

   962 #define JVM_ACC_VOLATILE      0x0040  /* can not cache in registers */

   963 #define JVM_ACC_BRIDGE        0x0040  /* bridge method generated by compiler */

   964 #define JVM_ACC_TRANSIENT     0x0080  /* not persistent */

   965 #define JVM_ACC_VARARGS       0x0080  /* method declared with variable number of args */

   966 #define JVM_ACC_NATIVE        0x0100  /* implemented in C */

   967 #define JVM_ACC_INTERFACE     0x0200  /* class is an interface */

   968 #define JVM_ACC_ABSTRACT      0x0400  /* no definition provided */

   969 #define JVM_ACC_STRICT        0x0800  /* strict floating point */

   970 #define JVM_ACC_SYNTHETIC     0x1000  /* compiler-generated class, method or field */

   971 #define JVM_ACC_ANNOTATION    0x2000  /* annotation type */

   972 #define JVM_ACC_ENUM          0x4000  /* field is declared as element of enum */

   973 #define JVM_ACC_MODULE        0x8000  /* module-info class file */

   974 

   975 #define JVM_ACC_PUBLIC_BIT        0

   976 #define JVM_ACC_PRIVATE_BIT       1

   977 #define JVM_ACC_PROTECTED_BIT     2

   978 #define JVM_ACC_STATIC_BIT        3

   979 #define JVM_ACC_FINAL_BIT         4

   980 #define JVM_ACC_SYNCHRONIZED_BIT  5

   981 #define JVM_ACC_SUPER_BIT         5

   982 #define JVM_ACC_VOLATILE_BIT      6

   983 #define JVM_ACC_BRIDGE_BIT        6

   984 #define JVM_ACC_TRANSIENT_BIT     7

   985 #define JVM_ACC_VARARGS_BIT       7

   986 #define JVM_ACC_NATIVE_BIT        8

   987 #define JVM_ACC_INTERFACE_BIT     9

   988 #define JVM_ACC_ABSTRACT_BIT      10

   989 #define JVM_ACC_STRICT_BIT        11

   990 #define JVM_ACC_SYNTHETIC_BIT     12

   991 #define JVM_ACC_ANNOTATION_BIT    13

   992 #define JVM_ACC_ENUM_BIT          14

   993 

   994 // NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/utilities/ConstantTag.java

   995 enum {

   996     JVM_CONSTANT_Utf8 = 1,

   997     JVM_CONSTANT_Unicode,               /* unused */

   998     JVM_CONSTANT_Integer,

   999     JVM_CONSTANT_Float,

  1000     JVM_CONSTANT_Long,

  1001     JVM_CONSTANT_Double,

  1002     JVM_CONSTANT_Class,

  1003     JVM_CONSTANT_String,

  1004     JVM_CONSTANT_Fieldref,

  1005     JVM_CONSTANT_Methodref,

  1006     JVM_CONSTANT_InterfaceMethodref,

  1007     JVM_CONSTANT_NameAndType,

  1008     JVM_CONSTANT_MethodHandle           = 15,  // JSR 292

  1009     JVM_CONSTANT_MethodType             = 16,  // JSR 292

  1010     //JVM_CONSTANT_(unused)             = 17,  // JSR 292 early drafts only

  1011     JVM_CONSTANT_InvokeDynamic          = 18,  // JSR 292

  1012     JVM_CONSTANT_ExternalMax            = 18   // Last tag found in classfiles

  1013 };

  1014 

  1015 /* JVM_CONSTANT_MethodHandle subtypes */

  1016 enum {

  1017     JVM_REF_getField                = 1,

  1018     JVM_REF_getStatic               = 2,

  1019     JVM_REF_putField                = 3,

  1020     JVM_REF_putStatic               = 4,

  1021     JVM_REF_invokeVirtual           = 5,

  1022     JVM_REF_invokeStatic            = 6,

  1023     JVM_REF_invokeSpecial           = 7,

  1024     JVM_REF_newInvokeSpecial        = 8,

  1025     JVM_REF_invokeInterface         = 9

  1026 };

  1027 

  1028 /* Used in the newarray instruction. */

  1029 

  1030 #define JVM_T_BOOLEAN 4

  1031 #define JVM_T_CHAR    5

  1032 #define JVM_T_FLOAT   6

  1033 #define JVM_T_DOUBLE  7

  1034 #define JVM_T_BYTE    8

  1035 #define JVM_T_SHORT   9

  1036 #define JVM_T_INT    10

  1037 #define JVM_T_LONG   11

  1038 

  1039 /* JVM method signatures */

  1040 

  1041 #define JVM_SIGNATURE_ARRAY             '['

  1042 #define JVM_SIGNATURE_BYTE              'B'

  1043 #define JVM_SIGNATURE_CHAR              'C'

  1044 #define JVM_SIGNATURE_CLASS             'L'

  1045 #define JVM_SIGNATURE_ENDCLASS          ';'

  1046 #define JVM_SIGNATURE_ENUM              'E'

  1047 #define JVM_SIGNATURE_FLOAT             'F'

  1048 #define JVM_SIGNATURE_DOUBLE            'D'

  1049 #define JVM_SIGNATURE_FUNC              '('

  1050 #define JVM_SIGNATURE_ENDFUNC           ')'

  1051 #define JVM_SIGNATURE_INT               'I'

  1052 #define JVM_SIGNATURE_LONG              'J'

  1053 #define JVM_SIGNATURE_SHORT             'S'

  1054 #define JVM_SIGNATURE_VOID              'V'

  1055 #define JVM_SIGNATURE_BOOLEAN           'Z'

  1056 

  1057 /*

  1058  * A function defined by the byte-code verifier and called by the VM.

  1059  * This is not a function implemented in the VM.

  1060  *

  1061  * Returns JNI_FALSE if verification fails. A detailed error message

  1062  * will be places in msg_buf, whose length is specified by buf_len.

  1063  */

  1064 typedef jboolean (*verifier_fn_t)(JNIEnv *env,

  1065                                   jclass cb,

  1066                                   char * msg_buf,

  1067                                   jint buf_len);

  1068 

  1069 

  1070 /*

  1071  * Support for a VM-independent class format checker.

  1072  */

  1073 typedef struct {

  1074     unsigned long code;    /* byte code */

  1075     unsigned long excs;    /* exceptions */

  1076     unsigned long etab;    /* catch table */

  1077     unsigned long lnum;    /* line number */

  1078     unsigned long lvar;    /* local vars */

  1079 } method_size_info;

  1080 

  1081 typedef struct {

  1082     unsigned int constants;    /* constant pool */

  1083     unsigned int fields;

  1084     unsigned int methods;

  1085     unsigned int interfaces;

  1086     unsigned int fields2;      /* number of static 2-word fields */

  1087     unsigned int innerclasses; /* # of records in InnerClasses attr */

  1088 

  1089     method_size_info clinit;   /* memory used in clinit */

  1090     method_size_info main;     /* used everywhere else */

  1091 } class_size_info;

  1092 

  1093 /*

  1094  * Functions defined in libjava.so to perform string conversions.

  1095  *

  1096  */

  1097 

  1098 typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str);

  1099 

  1100 typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b);

  1101 

  1102 /* This is the function defined in libjava.so that performs class

  1103  * format checks. This functions fills in size information about

  1104  * the class file and returns:

  1105  *

  1106  *   0: good

  1107  *  -1: out of memory

  1108  *  -2: bad format

  1109  *  -3: unsupported version

  1110  *  -4: bad class name

  1111  */

  1112 

  1113 typedef jint (*check_format_fn_t)(char *class_name,

  1114                                   unsigned char *data,

  1115                                   unsigned int data_size,

  1116                                   class_size_info *class_size,

  1117                                   char *message_buffer,

  1118                                   jint buffer_length,

  1119                                   jboolean measure_only,

  1120                                   jboolean check_relaxed);

  1121 

  1122 #define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \

  1123                                         JVM_ACC_FINAL | \

  1124                                         JVM_ACC_SUPER | \

  1125                                         JVM_ACC_INTERFACE | \

  1126                                         JVM_ACC_ABSTRACT | \

  1127                                         JVM_ACC_ANNOTATION | \

  1128                                         JVM_ACC_ENUM | \

  1129                                         JVM_ACC_SYNTHETIC)

  1130 

  1131 #define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \

  1132                                         JVM_ACC_PRIVATE | \

  1133                                         JVM_ACC_PROTECTED | \

  1134                                         JVM_ACC_STATIC | \

  1135                                         JVM_ACC_FINAL | \