decoder_windows.hpp revision 3988:dd7248d3e151 
1/*
2 * Copyright (c) 2011, 2012, 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.
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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
34typedef DWORD (WINAPI *pfn_SymSetOptions)(DWORD);
35typedef BOOL  (WINAPI *pfn_SymInitialize)(HANDLE, PCTSTR, BOOL);
36typedef BOOL  (WINAPI *pfn_SymGetSymFromAddr64)(HANDLE, DWORD64, PDWORD64, PIMAGEHLP_SYMBOL64);
37typedef DWORD (WINAPI *pfn_UndecorateSymbolName)(const char*, char*, DWORD, DWORD);
38typedef BOOL  (WINAPI *pfn_SymSetSearchPath)(HANDLE, PCTSTR);
39typedef BOOL  (WINAPI *pfn_SymGetSearchPath)(HANDLE, PTSTR, int);
40
41class WindowsDecoder : public AbstractDecoder {
42
43public:
44  WindowsDecoder();
45  ~WindowsDecoder() { uninitialize(); };
46
47  bool can_decode_C_frame_in_vm() const;
48  bool demangle(const char* symbol, char *buf, int buflen);
49  bool decode(address addr, char *buf, int buflen, int* offset, const char* modulepath = NULL);
50  bool decode(address addr, char *buf, int buflen, int* offset, const void* base) {
51    ShouldNotReachHere();
52    return false;
53  }
54
55private:
56  void initialize();
57  void uninitialize();
58
59private:
60  HMODULE                   _dbghelp_handle;
61  bool                      _can_decode_in_vm;
62  pfn_SymGetSymFromAddr64   _pfnSymGetSymFromAddr64;
63  pfn_UndecorateSymbolName  _pfnUndecorateSymbolName;
64};
65
66#endif // OS_WINDOWS_VM_DECODER_WINDOWS_HPP
67
68