view src/share/vm/prims/nativeLookup.hpp @ 0:a61af66fc99e

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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children c18cbe5936b8
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/*
 * Copyright 1997-2005 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 *
 */

// NativeLookup provides an interface for finding DLL entry points for
// Java native functions.

class NativeLookup : AllStatic {
 private:
  // JNI name computation
  static char* pure_jni_name(methodHandle method);
  static char* long_jni_name(methodHandle method);

  // Style specific lookup
  static address lookup_style(methodHandle method, char* pure_name, const char* long_name, int args_size, bool os_style, bool& in_base_library, TRAPS);
  static address lookup_base (methodHandle method, bool& in_base_library, TRAPS);
  static address lookup_entry(methodHandle method, bool& in_base_library, TRAPS);
  static address lookup_entry_prefixed(methodHandle method, bool& in_base_library, TRAPS);
 public:
  // Lookup native function. May throw UnsatisfiedLinkError.
  static address lookup(methodHandle method, bool& in_base_library, TRAPS);

  // Lookup native functions in base library.
  static address base_library_lookup(const char* class_name, const char* method_name, const char* signature);
};