1 /*
   2  * Copyright (c) 1998, 2012, 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_MISC_HPP
  26 #define SHARE_VM_PRIMS_JVM_MISC_HPP
  27 
  28 #include "prims/jni.h"
  29 #include "runtime/handles.hpp"
  30 
  31 // Useful entry points shared by JNI and JVM interface.
  32 // We do not allow real JNI or JVM entry point to call each other.
  33 
  34 jclass find_class_from_class_loader(JNIEnv* env, Symbol* name, jboolean init, Handle loader, Handle protection_domain, jboolean throwError, TRAPS);
  35 
  36 void trace_class_resolution(Klass* to_class);
  37 
  38 /*
  39  * Support for Serialization and RMI. Currently used by HotSpot only.
  40  */
  41 
  42 extern "C" {
  43 
  44 void JNICALL
  45 JVM_SetPrimitiveFieldValues(JNIEnv *env, jclass cb, jobject obj,
  46                             jlongArray fieldIDs, jcharArray typecodes, jbyteArray data);
  47 
  48 void JNICALL
  49 JVM_GetPrimitiveFieldValues(JNIEnv *env, jclass cb, jobject obj,
  50                             jlongArray fieldIDs, jcharArray typecodes, jbyteArray data);
  51 
  52 }
  53 
  54 /*
  55  * Support for -Xcheck:jni
  56  */
  57 
  58 extern struct JNINativeInterface_* jni_functions_nocheck();
  59 extern struct JNINativeInterface_* jni_functions_check();
  60 
  61 /*
  62  * Support for swappable jni function table.
  63  */
  64 extern struct JNINativeInterface_* jni_functions();
  65 extern void copy_jni_function_table(const struct JNINativeInterface_* new_function_table);
  66 
  67 // Support for fast JNI accessors
  68 extern "C" {
  69   typedef jboolean (JNICALL *GetBooleanField_t)
  70       (JNIEnv *env, jobject obj, jfieldID fieldID);
  71   typedef jbyte (JNICALL *GetByteField_t)
  72       (JNIEnv *env, jobject obj, jfieldID fieldID);
  73   typedef jchar (JNICALL *GetCharField_t)
  74       (JNIEnv *env, jobject obj, jfieldID fieldID);
  75   typedef jshort (JNICALL *GetShortField_t)
  76       (JNIEnv *env, jobject obj, jfieldID fieldID);
  77   typedef jint (JNICALL *GetIntField_t)
  78       (JNIEnv *env, jobject obj, jfieldID fieldID);
  79   typedef jlong (JNICALL *GetLongField_t)
  80       (JNIEnv *env, jobject obj, jfieldID fieldID);
  81   typedef jfloat (JNICALL *GetFloatField_t)
  82       (JNIEnv *env, jobject obj, jfieldID fieldID);
  83   typedef jdouble (JNICALL *GetDoubleField_t)
  84     (JNIEnv *env, jobject obj, jfieldID fieldID);
  85 }
  86 
  87 void    quicken_jni_functions();
  88 address jni_GetBooleanField_addr();
  89 address jni_GetByteField_addr();
  90 address jni_GetCharField_addr();
  91 address jni_GetShortField_addr();
  92 address jni_GetIntField_addr();
  93 address jni_GetLongField_addr();
  94 address jni_GetFloatField_addr();
  95 address jni_GetDoubleField_addr();
  96 
  97 #endif // SHARE_VM_PRIMS_JVM_MISC_HPP