1 /*

     2  * Copyright (c) 2011, 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.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  *

    23  */

    24 

    25 #ifndef OS_WINDOWS_VM_DECODER_WINDOWS_HPP

    26 #define OS_WINDOWS_VM_DECIDER_WINDOWS_HPP

    27 

    28 #include <windows.h>

    29 #include <imagehlp.h>

    30 

    31 #include "utilities/decoder.hpp"

    32 

    33 // functions needed for decoding symbols

    34 typedef DWORD (WINAPI *pfn_SymSetOptions)(DWORD);

    35 typedef BOOL  (WINAPI *pfn_SymInitialize)(HANDLE, PCTSTR, BOOL);

    36 typedef BOOL  (WINAPI *pfn_SymGetSymFromAddr64)(HANDLE, DWORD64, PDWORD64, PIMAGEHLP_SYMBOL64);

    37 typedef DWORD (WINAPI *pfn_UndecorateSymbolName)(const char*, char*, DWORD, DWORD);

    38 

    39 class WindowsDecoder: public NullDecoder {

    40 

    41 public:

    42   WindowsDecoder();

    43   ~WindowsDecoder() { uninitialize(); };

    44 

    45   bool can_decode_C_frame_in_vm() const;

    46   bool demangle(const char* symbol, char *buf, int buflen);

    47   bool decode(address addr, char *buf, int buflen, int* offset, const char* modulepath = NULL);

    48 

    49 private:

    50   void initialize();

    51   void uninitialize();

    52 

    53 private:

    54   HMODULE                   _dbghelp_handle;

    55   bool                      _can_decode_in_vm;

    56   pfn_SymGetSymFromAddr64   _pfnSymGetSymFromAddr64;

    57   pfn_UndecorateSymbolName  _pfnUndecorateSymbolName;

    58 };

    59 

    60 #endif // OS_WINDOWS_VM_DECODER_WINDOWS_HPP

    61