view src/share/vm/prims/jvm_misc.hpp @ 6725:da91efe96a93

6964458: Reimplement class meta-data storage to use native memory Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
author coleenp
date Sat, 01 Sep 2012 13:25:18 -0400
parents 1d1603768966
children 675ffabf3798
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/*
 * Copyright (c) 1998, 2012, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 *
 */

#ifndef SHARE_VM_PRIMS_JVM_MISC_HPP
#define SHARE_VM_PRIMS_JVM_MISC_HPP

#include "prims/jni.h"
#include "runtime/handles.hpp"

// Useful entry points shared by JNI and JVM interface.
// We do not allow real JNI or JVM entry point to call each other.

jclass find_class_from_class_loader(JNIEnv* env, Symbol* name, jboolean init, Handle loader, Handle protection_domain, jboolean throwError, TRAPS);

void trace_class_resolution(Klass* to_class);

/*
 * Support for Serialization and RMI. Currently used by HotSpot only.
 */

extern "C" {

void JNICALL
JVM_SetPrimitiveFieldValues(JNIEnv *env, jclass cb, jobject obj,
                            jlongArray fieldIDs, jcharArray typecodes, jbyteArray data);

void JNICALL
JVM_GetPrimitiveFieldValues(JNIEnv *env, jclass cb, jobject obj,
                            jlongArray fieldIDs, jcharArray typecodes, jbyteArray data);

}

/*
 * Support for -Xcheck:jni
 */

extern struct JNINativeInterface_* jni_functions_nocheck();
extern struct JNINativeInterface_* jni_functions_check();

/*
 * Support for swappable jni function table.
 */
extern struct JNINativeInterface_* jni_functions();
extern void copy_jni_function_table(const struct JNINativeInterface_* new_function_table);

// Support for fast JNI accessors
extern "C" {
  typedef jboolean (JNICALL *GetBooleanField_t)
      (JNIEnv *env, jobject obj, jfieldID fieldID);
  typedef jbyte (JNICALL *GetByteField_t)
      (JNIEnv *env, jobject obj, jfieldID fieldID);
  typedef jchar (JNICALL *GetCharField_t)
      (JNIEnv *env, jobject obj, jfieldID fieldID);
  typedef jshort (JNICALL *GetShortField_t)
      (JNIEnv *env, jobject obj, jfieldID fieldID);
  typedef jint (JNICALL *GetIntField_t)
      (JNIEnv *env, jobject obj, jfieldID fieldID);
  typedef jlong (JNICALL *GetLongField_t)
      (JNIEnv *env, jobject obj, jfieldID fieldID);
  typedef jfloat (JNICALL *GetFloatField_t)
      (JNIEnv *env, jobject obj, jfieldID fieldID);
  typedef jdouble (JNICALL *GetDoubleField_t)
    (JNIEnv *env, jobject obj, jfieldID fieldID);
}

void    quicken_jni_functions();
address jni_GetBooleanField_addr();
address jni_GetByteField_addr();
address jni_GetCharField_addr();
address jni_GetShortField_addr();
address jni_GetIntField_addr();
address jni_GetLongField_addr();
address jni_GetFloatField_addr();
address jni_GetDoubleField_addr();

#endif // SHARE_VM_PRIMS_JVM_MISC_HPP