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1 /*
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2 * Copyright (c) 1997, 2005, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 // NativeLookup provides an interface for finding DLL entry points for
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26 // Java native functions.
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27
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28 class NativeLookup : AllStatic {
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29 private:
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30 // JNI name computation
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31 static char* pure_jni_name(methodHandle method);
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32 static char* long_jni_name(methodHandle method);
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33
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34 // Style specific lookup
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35 static address lookup_style(methodHandle method, char* pure_name, const char* long_name, int args_size, bool os_style, bool& in_base_library, TRAPS);
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36 static address lookup_base (methodHandle method, bool& in_base_library, TRAPS);
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37 static address lookup_entry(methodHandle method, bool& in_base_library, TRAPS);
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38 static address lookup_entry_prefixed(methodHandle method, bool& in_base_library, TRAPS);
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39 public:
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40 // Lookup native function. May throw UnsatisfiedLinkError.
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41 static address lookup(methodHandle method, bool& in_base_library, TRAPS);
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42
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43 // Lookup native functions in base library.
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44 static address base_library_lookup(const char* class_name, const char* method_name, const char* signature);
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45 };
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