4803
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1 /*
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2 * Copyright (c) 2011, 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 #ifndef OS_WINDOWS_VM_DECODER_WINDOWS_HPP
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26 #define OS_WINDOWS_VM_DECIDER_WINDOWS_HPP
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27
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28 #include <windows.h>
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29 #include <imagehlp.h>
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30
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31 #include "utilities/decoder.hpp"
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32
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33 // functions needed for decoding symbols
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34 typedef DWORD (WINAPI *pfn_SymSetOptions)(DWORD);
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35 typedef BOOL (WINAPI *pfn_SymInitialize)(HANDLE, PCTSTR, BOOL);
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36 typedef BOOL (WINAPI *pfn_SymGetSymFromAddr64)(HANDLE, DWORD64, PDWORD64, PIMAGEHLP_SYMBOL64);
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37 typedef DWORD (WINAPI *pfn_UndecorateSymbolName)(const char*, char*, DWORD, DWORD);
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38
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39 class WindowsDecoder : public AbstractDecoder {
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40
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41 public:
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42 WindowsDecoder();
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43 ~WindowsDecoder() { uninitialize(); };
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44
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45 bool can_decode_C_frame_in_vm() const;
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46 bool demangle(const char* symbol, char *buf, int buflen);
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47 bool decode(address addr, char *buf, int buflen, int* offset, const char* modulepath = NULL);
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48
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49 private:
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50 void initialize();
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51 void uninitialize();
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52
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53 private:
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54 HMODULE _dbghelp_handle;
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55 bool _can_decode_in_vm;
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56 pfn_SymGetSymFromAddr64 _pfnSymGetSymFromAddr64;
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57 pfn_UndecorateSymbolName _pfnUndecorateSymbolName;
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58 };
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59
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60 #endif // OS_WINDOWS_VM_DECODER_WINDOWS_HPP
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61
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