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comparison src/os/windows/vm/decoder_windows.hpp @ 4803:d7e3846464d0

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7071311: Decoder enhancement Summary: Made decoder thread-safe Reviewed-by: coleenp, kamg
author zgu
date Tue, 17 Jan 2012 13:08:52 -0500
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children db006a85bf91
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4801:4f3ce9284781 4803:d7e3846464d0
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