1 /* 2 * Copyright (c) 2011, 2017, 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 typedef BOOL (WINAPI *pfn_SymSetSearchPath)(HANDLE, PCTSTR); 39 typedef BOOL (WINAPI *pfn_SymGetSearchPath)(HANDLE, PTSTR, int); 40 41 #ifdef AMD64 42 typedef BOOL (WINAPI *pfn_StackWalk64)(DWORD MachineType, 43 HANDLE hProcess, 44 HANDLE hThread, 45 LPSTACKFRAME64 StackFrame, 46 PVOID ContextRecord, 47 PREAD_PROCESS_MEMORY_ROUTINE64 ReadMemoryRoutine, 48 PFUNCTION_TABLE_ACCESS_ROUTINE64 FunctionTableAccessRoutine, 49 PGET_MODULE_BASE_ROUTINE64 GetModuleBaseRoutine, 50 PTRANSLATE_ADDRESS_ROUTINE64 TranslateAddress); 51 typedef PVOID (WINAPI *pfn_SymFunctionTableAccess64)(HANDLE hProcess, DWORD64 AddrBase); 52 typedef DWORD64 (WINAPI *pfn_SymGetModuleBase64)(HANDLE hProcess, DWORD64 dwAddr); 53 #endif 54 55 class WindowsDecoder : public AbstractDecoder { 56 57 public: 58 WindowsDecoder(); 59 virtual ~WindowsDecoder() { uninitialize(); }; 60 61 bool can_decode_C_frame_in_vm() const; 62 bool demangle(const char* symbol, char *buf, int buflen); 63 bool decode(address addr, char *buf, int buflen, int* offset, const char* modulepath, bool demangle); 64 bool decode(address addr, char *buf, int buflen, int* offset, const void* base) { 65 ShouldNotReachHere(); 66 return false; 67 } 68 69 private: 70 void initialize(); 71 void uninitialize(); 72 73 private: 74 HMODULE _dbghelp_handle; 75 bool _can_decode_in_vm; 76 pfn_SymGetSymFromAddr64 _pfnSymGetSymFromAddr64; 77 pfn_UndecorateSymbolName _pfnUndecorateSymbolName; 78 #ifdef AMD64 79 pfn_StackWalk64 _pfnStackWalk64; 80 pfn_SymFunctionTableAccess64 _pfnSymFunctionTableAccess64; 81 pfn_SymGetModuleBase64 _pfnSymGetModuleBase64; 82 83 friend class WindowsDbgHelp; 84 #endif 85 }; 86 87 #ifdef AMD64 88 // TODO: refactor and move the handling of dbghelp.dll outside of Decoder 89 class WindowsDbgHelp : public Decoder { 90 public: 91 static BOOL StackWalk64(DWORD MachineType, 92 HANDLE hProcess, 93 HANDLE hThread, 94 LPSTACKFRAME64 StackFrame, 95 PVOID ContextRecord, 96 PREAD_PROCESS_MEMORY_ROUTINE64 ReadMemoryRoutine, 97 PFUNCTION_TABLE_ACCESS_ROUTINE64 FunctionTableAccessRoutine, 98 PGET_MODULE_BASE_ROUTINE64 GetModuleBaseRoutine, 99 PTRANSLATE_ADDRESS_ROUTINE64 TranslateAddress); 100 static PVOID SymFunctionTableAccess64(HANDLE hProcess, DWORD64 AddrBase); 101 102 static pfn_SymFunctionTableAccess64 pfnSymFunctionTableAccess64(); 103 static pfn_SymGetModuleBase64 pfnSymGetModuleBase64(); 104 }; 105 #endif 106 107 #endif // OS_WINDOWS_VM_DECODER_WINDOWS_HPP