nativeLookup.hpp revision 1879:f95d63e2154a 
1/*
2 * Copyright (c) 1997, 2010, 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.
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23 */
24
25#ifndef SHARE_VM_PRIMS_NATIVELOOKUP_HPP
26#define SHARE_VM_PRIMS_NATIVELOOKUP_HPP
27
28#include "runtime/handles.hpp"
29#include "utilities/top.hpp"
30
31// NativeLookup provides an interface for finding DLL entry points for
32// Java native functions.
33
34class NativeLookup : AllStatic {
35 private:
36  // JNI name computation
37  static char* pure_jni_name(methodHandle method);
38  static char* long_jni_name(methodHandle method);
39
40  // Style specific lookup
41  static address lookup_style(methodHandle method, char* pure_name, const char* long_name, int args_size, bool os_style, bool& in_base_library, TRAPS);
42  static address lookup_base (methodHandle method, bool& in_base_library, TRAPS);
43  static address lookup_entry(methodHandle method, bool& in_base_library, TRAPS);
44  static address lookup_entry_prefixed(methodHandle method, bool& in_base_library, TRAPS);
45 public:
46  // Lookup native function. May throw UnsatisfiedLinkError.
47  static address lookup(methodHandle method, bool& in_base_library, TRAPS);
48
49  // Lookup native functions in base library.
50  static address base_library_lookup(const char* class_name, const char* method_name, const char* signature);
51};
52
53#endif // SHARE_VM_PRIMS_NATIVELOOKUP_HPP
54