1 | /* |
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2 | * 2008 January 19 |
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3 | * |
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4 | * The author disclaims copyright to this source code. In place of |
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5 | * a legal notice, here is a blessing: |
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6 | * |
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7 | * May you do good and not evil. |
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8 | * May you find forgiveness for yourself and forgive others. |
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9 | * May you share freely, never taking more than you give. |
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10 | * |
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11 | ******************************************************************** |
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12 | * |
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13 | * DONE: |
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14 | * - Command line |
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15 | * - Windows version |
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16 | * - Exception |
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17 | * - Registers |
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18 | * - Stacktrace (frame number starting at 0) |
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19 | * + Functions: |
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20 | * - address |
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21 | * - name |
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22 | * - offset in the function |
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23 | * - line number and source file |
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24 | * - source code of the line (external source) |
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25 | * - function parameters |
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26 | * - local function variables |
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27 | * + Variables/parameters: |
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28 | * - variable name |
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29 | * - variable type (char/wchar, integers, floats, enums, arrays, |
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30 | * pointers, structs, unions, ...) |
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31 | * - readability of memory |
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32 | * - value of char/wchar |
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33 | * - value of integers |
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34 | * - value of floats |
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35 | * - value of enums (hex number) |
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36 | * - values of arrays |
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37 | * - address of pointers |
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38 | * - value of simple pointers (not pointing to another pointer) |
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39 | * - show (char*) and (wchar*) as nul-terminated strings |
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40 | * - show chars/wchar escaped |
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41 | * + Modules: |
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42 | * - base address |
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43 | * - file |
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44 | * - version |
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45 | * - size |
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46 | * |
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47 | * TODO: |
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48 | * + Variables/parameters: |
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49 | * - structure members |
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50 | * - union members |
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51 | * - globals |
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52 | * - Portability to MinGW |
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53 | * |
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54 | * $Id: dbghelpplug.c 12143 2008-01-27 00:34:24Z FlavioJS $ |
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55 | */ |
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56 | |
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57 | #ifdef _WIN32 |
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58 | |
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59 | |
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60 | ///////////////////////////////////////////////////////////////////// |
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61 | // Include files |
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62 | // |
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63 | |
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64 | #include <assert.h> |
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65 | |
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66 | #define WIN32_LEAN_AND_MEAN |
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67 | #include <windows.h> |
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68 | |
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69 | #define _NO_CVCONST_H |
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70 | #include <dbghelp.h> |
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71 | |
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72 | #include <stdio.h> |
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73 | #include <stdlib.h> |
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74 | #include <time.h> |
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75 | |
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76 | |
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77 | ///////////////////////////////////////////////////////////////////// |
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78 | // Types from Cvconst.h (DIA SDK) |
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79 | // |
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80 | |
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81 | #ifdef _NO_CVCONST_H |
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82 | |
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83 | typedef enum _BasicType |
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84 | { |
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85 | btNoType = 0, |
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86 | btVoid = 1, |
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87 | btChar = 2, |
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88 | btWChar = 3, |
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89 | btInt = 6, |
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90 | btUInt = 7, |
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91 | btFloat = 8, |
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92 | btBCD = 9, |
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93 | btBool = 10, |
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94 | btLong = 13, |
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95 | btULong = 14, |
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96 | btCurrency = 25, |
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97 | btDate = 26, |
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98 | btVariant = 27, |
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99 | btComplex = 28, |
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100 | btBit = 29, |
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101 | btBSTR = 30, |
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102 | btHresult = 31 |
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103 | } BasicType; |
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104 | |
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105 | typedef enum _UdtKind |
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106 | { |
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107 | UdtStruct, |
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108 | UdtClass, |
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109 | UdtUnion |
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110 | } UdtKind; |
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111 | |
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112 | typedef enum _SymTag { |
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113 | SymTagNull = 0, |
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114 | SymTagExe = 1, |
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115 | SymTagCompiland = 2, |
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116 | SymTagCompilandDetails = 3, |
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117 | SymTagCompilandEnv = 4, |
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118 | SymTagFunction = 5, |
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119 | SymTagBlock = 6, |
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120 | SymTagData = 7, |
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121 | SymTagAnnotation = 8, |
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122 | SymTagLabel = 9, |
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123 | SymTagPublicSymbol = 10, |
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124 | SymTagUDT = 11, |
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125 | SymTagEnum = 12, |
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126 | SymTagFunctionType = 13, |
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127 | SymTagPointerType = 14, |
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128 | SymTagArrayType = 15, |
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129 | SymTagBaseType = 16, |
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130 | SymTagTypedef = 17, |
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131 | SymTagBaseClass = 18, |
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132 | SymTagFriend = 19, |
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133 | SymTagFunctionArgType = 20, |
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134 | SymTagFuncDebugStart = 21, |
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135 | SymTagFuncDebugEnd = 22, |
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136 | SymTagUsingNamespace = 23, |
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137 | SymTagVTableShape = 24, |
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138 | SymTagVTable = 25, |
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139 | SymTagCustom = 26, |
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140 | SymTagThunk = 27, |
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141 | SymTagCustomType = 28, |
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142 | SymTagManagedType = 29, |
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143 | SymTagDimension = 30 |
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144 | } SymTag; |
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145 | |
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146 | #endif /* _NO_CVCONST_H */ |
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147 | |
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148 | |
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149 | ///////////////////////////////////////////////////////////////////// |
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150 | // dbghelp function prototypes |
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151 | // |
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152 | |
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153 | typedef BOOL (WINAPI *MINIDUMPWRITEDUMP)( |
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154 | HANDLE hProcess, |
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155 | DWORD ProcessId, |
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156 | HANDLE hFile, |
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157 | MINIDUMP_TYPE DumpType, |
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158 | CONST PMINIDUMP_EXCEPTION_INFORMATION ExceptionParam, |
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159 | CONST PMINIDUMP_USER_STREAM_INFORMATION UserStreamParam, |
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160 | CONST PMINIDUMP_CALLBACK_INFORMATION CallbackParam |
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161 | ); |
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162 | typedef BOOL (WINAPI *SYMINITIALIZE)( |
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163 | HANDLE hProcess, |
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164 | PSTR UserSearchPath, |
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165 | BOOL fInvadeProcess |
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166 | ); |
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167 | typedef DWORD (WINAPI *SYMSETOPTIONS)( |
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168 | DWORD SymOptions |
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169 | ); |
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170 | typedef DWORD (WINAPI *SYMGETOPTIONS)( |
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171 | VOID |
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172 | ); |
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173 | typedef BOOL (WINAPI *SYMCLEANUP)( |
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174 | HANDLE hProcess |
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175 | ); |
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176 | typedef BOOL (WINAPI *SYMGETTYPEINFO)( |
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177 | HANDLE hProcess, |
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178 | DWORD64 ModBase, |
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179 | ULONG TypeId, |
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180 | IMAGEHLP_SYMBOL_TYPE_INFO GetType, |
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181 | PVOID pInfo |
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182 | ); |
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183 | typedef BOOL (WINAPI *SYMGETLINEFROMADDR)( |
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184 | HANDLE hProcess, |
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185 | DWORD dwAddr, |
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186 | PDWORD pdwDisplacement, |
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187 | PIMAGEHLP_LINE Line |
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188 | ); |
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189 | typedef BOOL (WINAPI *SYMENUMSYMBOLS)( |
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190 | HANDLE hProcess, |
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191 | ULONG64 BaseOfDll, |
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192 | PCSTR Mask, |
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193 | PSYM_ENUMERATESYMBOLS_CALLBACK EnumSymbolsCallback, |
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194 | PVOID UserContext |
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195 | ); |
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196 | typedef BOOL (WINAPI *SYMSETCONTEXT)( |
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197 | HANDLE hProcess, |
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198 | PIMAGEHLP_STACK_FRAME StackFrame, |
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199 | PIMAGEHLP_CONTEXT Context |
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200 | ); |
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201 | typedef BOOL (WINAPI *SYMFROMADDR)( |
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202 | HANDLE hProcess, |
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203 | DWORD64 Address, |
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204 | PDWORD64 Displacement, |
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205 | PSYMBOL_INFO Symbol |
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206 | ); |
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207 | typedef BOOL (WINAPI *STACKWALK)( |
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208 | DWORD MachineType, |
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209 | HANDLE hProcess, |
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210 | HANDLE hThread, |
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211 | LPSTACKFRAME StackFrame, |
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212 | PVOID ContextRecord, |
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213 | PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine, |
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214 | PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine, |
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215 | PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine, |
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216 | PTRANSLATE_ADDRESS_ROUTINE TranslateAddress |
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217 | ); |
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218 | typedef PVOID (WINAPI *SYMFUNCTIONTABLEACCESS)( |
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219 | HANDLE hProcess, |
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220 | DWORD AddrBase |
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221 | ); |
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222 | typedef DWORD (WINAPI *SYMGETMODULEBASE)( |
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223 | HANDLE hProcess, |
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224 | DWORD dwAddr |
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225 | ); |
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226 | |
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227 | |
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228 | ///////////////////////////////////////////////////////////////////// |
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229 | // Custom info |
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230 | |
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231 | /// Internal structure used to pass some data around |
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232 | typedef struct _InternalData { |
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233 | // PrintStacktrace |
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234 | FILE* log_file; |
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235 | STACKFRAME* pStackframe; |
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236 | HANDLE hProcess; |
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237 | DWORD nr_of_frame; |
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238 | |
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239 | // PrintFunctionDetail |
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240 | BOOL as_arg_list; |
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241 | BOOL log_params; |
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242 | BOOL log_locals; |
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243 | BOOL log_globals; |
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244 | DWORD nr_of_var; |
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245 | |
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246 | // PrintDataInfo |
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247 | ULONG64 modBase; |
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248 | } InterData; |
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249 | |
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250 | /// dbghelp dll filename |
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251 | #define DBGHELP_DLL "dbghelp.dll" |
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252 | |
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253 | // Default report filename, used when the module path is unavailable |
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254 | #define DBG_DEFAULT_FILENAME "athena" |
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255 | |
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256 | // Extended information printed in the console |
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257 | #define DBG_EXTENDED_INFORMATION \ |
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258 | "Please report the crash in the bug tracker:\n" \ |
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259 | "http://www.eathena.ws/board/index.php?autocom=bugtracker\n" |
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260 | |
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261 | |
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262 | ///////////////////////////////////////////////////////////////////// |
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263 | // Global variables |
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264 | |
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265 | HANDLE dbghelp_dll = INVALID_HANDLE_VALUE; |
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266 | MINIDUMPWRITEDUMP MiniDumpWriteDump_ = NULL; |
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267 | SYMINITIALIZE SymInitialize_ = NULL; |
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268 | SYMSETOPTIONS SymSetOptions_ = NULL; |
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269 | SYMGETOPTIONS SymGetOptions_ = NULL; |
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270 | SYMCLEANUP SymCleanup_ = NULL; |
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271 | SYMGETTYPEINFO SymGetTypeInfo_ = NULL; |
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272 | SYMGETLINEFROMADDR SymGetLineFromAddr_ = NULL; |
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273 | SYMENUMSYMBOLS SymEnumSymbols_ = NULL; |
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274 | SYMSETCONTEXT SymSetContext_ = NULL; |
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275 | SYMFROMADDR SymFromAddr_ = NULL; |
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276 | STACKWALK StackWalk_ = NULL; |
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277 | SYMFUNCTIONTABLEACCESS SymFunctionTableAccess_ = NULL; |
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278 | SYMGETMODULEBASE SymGetModuleBase_ = NULL; |
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279 | |
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280 | |
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281 | |
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282 | ///////////////////////////////////////////////////////////////////// |
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283 | // Code |
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284 | |
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285 | |
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286 | /// Writes the minidump to file. The callback function will at the |
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287 | /// same time write the list of modules to the log file. |
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288 | /// |
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289 | /// @param file Filename of the minidump |
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290 | /// @param ptrs Exception info |
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291 | /// @param module_callback Callback for MiniDumpWriteDump |
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292 | /// @param log_file Log file |
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293 | static VOID |
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294 | Dhp__WriteMinidumpFile( |
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295 | const char* file, |
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296 | PEXCEPTION_POINTERS ptrs, |
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297 | MINIDUMP_CALLBACK_ROUTINE module_callback, |
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298 | FILE* log_file) |
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299 | { |
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300 | // open minidump file |
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301 | HANDLE minidump_file = CreateFileA( |
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302 | file, |
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303 | GENERIC_WRITE, |
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304 | 0, |
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305 | NULL, |
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306 | CREATE_ALWAYS, |
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307 | FILE_ATTRIBUTE_NORMAL, |
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308 | NULL |
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309 | ); |
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310 | |
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311 | if( minidump_file != INVALID_HANDLE_VALUE ) |
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312 | { |
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313 | MINIDUMP_EXCEPTION_INFORMATION expt_info; |
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314 | MINIDUMP_CALLBACK_INFORMATION dump_cb_info; |
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315 | |
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316 | expt_info.ThreadId = GetCurrentThreadId(); |
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317 | expt_info.ExceptionPointers = ptrs; |
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318 | expt_info.ClientPointers = FALSE; |
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319 | |
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320 | dump_cb_info.CallbackRoutine = module_callback; |
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321 | dump_cb_info.CallbackParam = (void*)log_file; |
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322 | |
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323 | if( module_callback != NULL && log_file != NULL ) |
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324 | fprintf(log_file, "\n\nLoaded modules:\n"); |
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325 | |
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326 | MiniDumpWriteDump_( |
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327 | GetCurrentProcess(), |
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328 | GetCurrentProcessId(), |
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329 | minidump_file, |
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330 | MiniDumpNormal, |
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331 | ptrs ? &expt_info : NULL, |
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332 | NULL, |
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333 | &dump_cb_info |
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334 | ); |
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335 | |
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336 | CloseHandle(minidump_file); |
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337 | } |
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338 | } |
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339 | |
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340 | |
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341 | /// Prints module information to the log file. |
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342 | /// Used as a callback to MiniDumpWriteDump. |
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343 | /// |
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344 | /// @param data Log file |
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345 | /// @param callback_input |
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346 | /// @param callback_output |
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347 | /// @return |
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348 | static BOOL CALLBACK |
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349 | Dhp__PrintModuleInfoCallback( |
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350 | void* data, |
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351 | CONST PMINIDUMP_CALLBACK_INPUT callback_input, |
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352 | PMINIDUMP_CALLBACK_OUTPUT callback_output) |
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353 | { |
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354 | if( data != NULL && |
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355 | callback_input != NULL && |
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356 | callback_input->CallbackType == ModuleCallback) |
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357 | { |
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358 | FILE* log_file = (FILE*)data; |
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359 | MINIDUMP_MODULE_CALLBACK module = callback_input->Module; |
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360 | |
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361 | fprintf(log_file, "0x%p", module.BaseOfImage); |
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362 | |
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363 | fprintf(log_file, " %ws", module.FullPath, log_file); |
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364 | |
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365 | fprintf(log_file, " (%d.%d.%d.%d, %d bytes)\n", |
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366 | HIWORD(module.VersionInfo.dwFileVersionMS), |
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367 | LOWORD(module.VersionInfo.dwFileVersionMS), |
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368 | HIWORD(module.VersionInfo.dwFileVersionLS), |
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369 | LOWORD(module.VersionInfo.dwFileVersionLS), |
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370 | module.SizeOfImage); |
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371 | } |
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372 | |
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373 | return TRUE; |
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374 | } |
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375 | |
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376 | |
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377 | /// Prints details about the current process, platform and exception |
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378 | /// information to the log file. |
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379 | /// |
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380 | /// @param exception Exception info |
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381 | /// @param context Exception context |
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382 | /// @param log_file Log file |
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383 | static VOID |
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384 | Dhp__PrintProcessInfo( |
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385 | EXCEPTION_RECORD* exception, |
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386 | CONTEXT* context, |
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387 | FILE* log_file) |
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388 | { |
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389 | OSVERSIONINFOA oi; |
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390 | LPSTR cmd_line; |
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391 | |
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392 | fprintf(log_file, |
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393 | "\nProcess info:\n"); |
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394 | |
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395 | // print the command line |
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396 | cmd_line = GetCommandLineA(); |
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397 | if( cmd_line ) |
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398 | fprintf(log_file, |
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399 | "Cmd line: %s\n", |
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400 | cmd_line); |
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401 | |
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402 | // print information about the OS |
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403 | oi.dwOSVersionInfoSize = sizeof(oi); |
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404 | GetVersionExA(&oi); |
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405 | fprintf(log_file, |
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406 | "Platform: Windows OS version %d.%d build %d %s\n", |
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407 | oi.dwMajorVersion, oi.dwMinorVersion, oi.dwBuildNumber, oi.szCSDVersion); |
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408 | |
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409 | // print the exception code |
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410 | if( exception ) |
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411 | { |
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412 | fprintf(log_file, |
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413 | "\nException:\n" |
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414 | "0x%x", |
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415 | exception->ExceptionCode); |
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416 | switch( exception->ExceptionCode ) |
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417 | { |
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418 | #define PRINT(x) case x: fprintf(log_file, " "#x); break |
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419 | PRINT(EXCEPTION_ACCESS_VIOLATION); |
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420 | PRINT(EXCEPTION_DATATYPE_MISALIGNMENT); |
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421 | PRINT(EXCEPTION_BREAKPOINT); |
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422 | PRINT(EXCEPTION_SINGLE_STEP); |
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423 | PRINT(EXCEPTION_ARRAY_BOUNDS_EXCEEDED); |
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424 | PRINT(EXCEPTION_FLT_DENORMAL_OPERAND); |
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425 | PRINT(EXCEPTION_FLT_DIVIDE_BY_ZERO); |
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426 | PRINT(EXCEPTION_FLT_INEXACT_RESULT); |
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427 | PRINT(EXCEPTION_FLT_INVALID_OPERATION); |
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428 | PRINT(EXCEPTION_FLT_OVERFLOW); |
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429 | PRINT(EXCEPTION_FLT_STACK_CHECK); |
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430 | PRINT(EXCEPTION_FLT_UNDERFLOW); |
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431 | PRINT(EXCEPTION_INT_DIVIDE_BY_ZERO); |
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432 | PRINT(EXCEPTION_INT_OVERFLOW); |
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433 | PRINT(EXCEPTION_PRIV_INSTRUCTION); |
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434 | PRINT(EXCEPTION_IN_PAGE_ERROR); |
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435 | PRINT(EXCEPTION_ILLEGAL_INSTRUCTION); |
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436 | PRINT(EXCEPTION_NONCONTINUABLE_EXCEPTION); |
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437 | PRINT(EXCEPTION_STACK_OVERFLOW); |
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438 | PRINT(EXCEPTION_INVALID_DISPOSITION); |
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439 | PRINT(EXCEPTION_GUARD_PAGE); |
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440 | PRINT(EXCEPTION_INVALID_HANDLE); |
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441 | #undef PRINT |
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442 | } |
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443 | |
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444 | // print where the fault occured |
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445 | fprintf(log_file, " at location 0x%p", exception->ExceptionAddress); |
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446 | |
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447 | // if the exception was an access violation, print additional information |
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448 | if( exception->ExceptionCode == EXCEPTION_ACCESS_VIOLATION && exception->NumberParameters >= 2 ) |
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449 | fprintf(log_file, " %s location 0x%p", exception->ExceptionInformation[0] ? "writing to" : "reading from", exception->ExceptionInformation[1]); |
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450 | |
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451 | fprintf(log_file, "\n"); |
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452 | } |
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453 | |
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454 | // print the register info |
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455 | if( context ) |
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456 | { |
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457 | #if defined(_M_IX86) |
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458 | fprintf(log_file, |
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459 | "\nRegisters:\n"); |
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460 | if( context->ContextFlags & CONTEXT_INTEGER ) |
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461 | { |
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462 | fprintf(log_file, |
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463 | "eax=%08x ebx=%08x ecx=%08x edx=%08x esi=%08x edi=%08x\n", |
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464 | context->Eax, context->Ebx, context->Ecx, |
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465 | context->Edx, context->Esi, context->Edi); |
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466 | } |
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467 | if( context->ContextFlags & CONTEXT_CONTROL ) |
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468 | { |
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469 | fprintf(log_file, |
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470 | "eip=%08x esp=%08x ebp=%08x iopl=%1x %s %s %s %s %s %s %s %s %s %s\n", |
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471 | context->Eip, context->Esp, context->Ebp, |
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472 | (context->EFlags >> 12) & 3, // IOPL level value |
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473 | context->EFlags & 0x00100000 ? "vip" : " ", // VIP (virtual interrupt pending) |
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474 | context->EFlags & 0x00080000 ? "vif" : " ", // VIF (virtual interrupt flag) |
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475 | context->EFlags & 0x00000800 ? "ov" : "nv", // VIF (virtual interrupt flag) |
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476 | context->EFlags & 0x00000400 ? "dn" : "up", // OF (overflow flag) |
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477 | context->EFlags & 0x00000200 ? "ei" : "di", // IF (interrupt enable flag) |
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478 | context->EFlags & 0x00000080 ? "ng" : "pl", // SF (sign flag) |
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479 | context->EFlags & 0x00000040 ? "zr" : "nz", // ZF (zero flag) |
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480 | context->EFlags & 0x00000010 ? "ac" : "na", // AF (aux carry flag) |
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481 | context->EFlags & 0x00000004 ? "po" : "pe", // PF (parity flag) |
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482 | context->EFlags & 0x00000001 ? "cy" : "nc"); // CF (carry flag) |
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483 | } |
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484 | if( context->ContextFlags & CONTEXT_SEGMENTS ) |
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485 | { |
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486 | fprintf(log_file, |
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487 | "cs=%04x ss=%04x ds=%04x es=%04x fs=%04x gs=%04x", |
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488 | context->SegCs, |
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489 | context->SegSs, |
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490 | context->SegDs, |
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491 | context->SegEs, |
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492 | context->SegFs, |
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493 | context->SegGs, |
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494 | context->EFlags); |
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495 | if( context->ContextFlags & CONTEXT_CONTROL ) |
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496 | fprintf(log_file, |
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497 | " efl=%08x", |
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498 | context->EFlags); |
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499 | fprintf(log_file, "\n"); |
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500 | } |
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501 | else if( context->ContextFlags & CONTEXT_CONTROL ) |
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502 | fprintf(log_file, |
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503 | " efl=%08x\n", |
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504 | context->EFlags); |
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505 | #else /* defined(_M_IX86) */ |
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506 | //TODO add more processors |
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507 | #endif |
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508 | } |
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509 | } |
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510 | |
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511 | |
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512 | /// Prints the typename of the symbol. |
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513 | /// |
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514 | /// @param typeIndex Type index of the symbol |
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515 | /// @param symtag Symbol tag |
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516 | /// @param withParens If brackets are printed around the typename |
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517 | /// @param interData Inter data |
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518 | static VOID |
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519 | Dhp__PrintTypeName( |
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520 | DWORD typeIndex, |
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521 | DWORD symtag, |
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522 | BOOL withParens, |
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523 | InterData* interData) |
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524 | { |
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525 | // inter data |
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526 | FILE* log_file; |
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527 | HANDLE hProcess; |
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528 | ULONG64 modBase; |
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529 | // |
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530 | assert( interData != NULL ); |
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531 | log_file = interData->log_file; |
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532 | hProcess = interData->hProcess; |
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533 | modBase = interData->modBase; |
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534 | |
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535 | if( withParens ) |
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536 | fprintf(log_file, "("); |
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537 | |
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538 | switch( symtag ) |
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539 | { |
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540 | case SymTagEnum: |
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541 | { |
---|
542 | WCHAR* pwszTypeName; |
---|
543 | |
---|
544 | if( SymGetTypeInfo_(hProcess, modBase, typeIndex, TI_GET_SYMNAME, &pwszTypeName) ) |
---|
545 | { |
---|
546 | fprintf(log_file, "enum %ls", pwszTypeName); |
---|
547 | LocalFree(pwszTypeName); |
---|
548 | } |
---|
549 | else |
---|
550 | fprintf(log_file, "enum <symname not found>"); |
---|
551 | } |
---|
552 | break; |
---|
553 | case SymTagBaseType: |
---|
554 | { |
---|
555 | DWORD basetype; |
---|
556 | ULONG64 length = 0; |
---|
557 | |
---|
558 | SymGetTypeInfo_(hProcess, modBase, typeIndex, TI_GET_LENGTH, &length); |
---|
559 | if( !SymGetTypeInfo_(hProcess, modBase, typeIndex, TI_GET_BASETYPE, &basetype) ) |
---|
560 | { |
---|
561 | fprintf(log_file, "<basetype not found>"); |
---|
562 | break; |
---|
563 | } |
---|
564 | switch( basetype ) |
---|
565 | { |
---|
566 | case btVoid: fprintf(log_file, "void"); break; |
---|
567 | case btChar: fprintf(log_file, "char"); break; |
---|
568 | case btWChar: fprintf(log_file, "wchar"); break; |
---|
569 | case btULong: fprintf(log_file, "unsigned "); // next |
---|
570 | case btLong: fprintf(log_file, "long"); break; |
---|
571 | case btUInt: fprintf(log_file, "unsigned "); // next |
---|
572 | case btInt: |
---|
573 | if( length == sizeof(char) ) fprintf(log_file, "char"); |
---|
574 | else if( length == sizeof(short) ) fprintf(log_file, "short"); |
---|
575 | else if( length == sizeof(int) ) fprintf(log_file, "int"); |
---|
576 | else if( length == sizeof(long long) ) fprintf(log_file, "long long"); |
---|
577 | else fprintf(log_file, "<int%d>", length*8); |
---|
578 | break; |
---|
579 | case btFloat: |
---|
580 | if( length == sizeof(float) ) fprintf(log_file, "float"); |
---|
581 | else if( length == sizeof(double) ) fprintf(log_file, "double"); |
---|
582 | else if( length == sizeof(long double) ) fprintf(log_file, "long double"); |
---|
583 | else fprintf(log_file, "<float%d>", length*8); |
---|
584 | break; |
---|
585 | default: fprintf(log_file, "<TODO name of basetype %d %d>", basetype, length); break; |
---|
586 | } |
---|
587 | } |
---|
588 | break; |
---|
589 | case SymTagPointerType: |
---|
590 | { |
---|
591 | DWORD subtype; |
---|
592 | DWORD subtag; |
---|
593 | |
---|
594 | if( !SymGetTypeInfo_(hProcess, modBase, typeIndex, TI_GET_TYPE, &subtype) ) |
---|
595 | fprintf(log_file, "<type not found>*"); |
---|
596 | else if( !SymGetTypeInfo_(hProcess, modBase, subtype, TI_GET_SYMTAG, &subtag) ) |
---|
597 | fprintf(log_file, "<symtag not found>*"); |
---|
598 | else |
---|
599 | { |
---|
600 | Dhp__PrintTypeName(subtype, subtag, FALSE, interData); |
---|
601 | fprintf(log_file, "*"); |
---|
602 | } |
---|
603 | } |
---|
604 | break; |
---|
605 | case SymTagArrayType: |
---|
606 | { |
---|
607 | DWORD childTypeIndex; |
---|
608 | DWORD childSymtag; |
---|
609 | |
---|
610 | // print root type |
---|
611 | childTypeIndex = typeIndex; |
---|
612 | childSymtag = symtag; |
---|
613 | for( ; ; ) |
---|
614 | { |
---|
615 | if( !SymGetTypeInfo_( hProcess, modBase, childTypeIndex, TI_GET_TYPE, &childTypeIndex) ) |
---|
616 | { |
---|
617 | fprintf(log_file, "<child type not found>"); |
---|
618 | break; |
---|
619 | } |
---|
620 | if( !SymGetTypeInfo_( hProcess, modBase, childTypeIndex, TI_GET_SYMTAG, &childSymtag) ) |
---|
621 | { |
---|
622 | fprintf(log_file, "<child symtag not found>"); |
---|
623 | break; |
---|
624 | } |
---|
625 | if( childSymtag != SymTagArrayType ) |
---|
626 | { |
---|
627 | Dhp__PrintTypeName(childTypeIndex, childSymtag, FALSE, interData); |
---|
628 | break; |
---|
629 | } |
---|
630 | // next dimension |
---|
631 | } |
---|
632 | // print dimensions |
---|
633 | childTypeIndex = typeIndex; |
---|
634 | childSymtag = symtag; |
---|
635 | for( ; childSymtag == SymTagArrayType ; ) |
---|
636 | { |
---|
637 | DWORD childCount; |
---|
638 | if( !SymGetTypeInfo_( hProcess, modBase, childTypeIndex, TI_GET_COUNT, &childCount) ) |
---|
639 | fprintf(log_file, "[<count not found>]"); |
---|
640 | else |
---|
641 | fprintf(log_file, "[%u]", childCount); |
---|
642 | if( !SymGetTypeInfo_( hProcess, modBase, childTypeIndex, TI_GET_TYPE, &childTypeIndex) ) |
---|
643 | { |
---|
644 | fprintf(log_file, "<child type not found>"); |
---|
645 | break; |
---|
646 | } |
---|
647 | if( !SymGetTypeInfo_( hProcess, modBase, childTypeIndex, TI_GET_SYMTAG, &childSymtag) ) |
---|
648 | { |
---|
649 | fprintf(log_file, "<child symtag not found>"); |
---|
650 | break; |
---|
651 | } |
---|
652 | // next dimension |
---|
653 | } |
---|
654 | } |
---|
655 | break; |
---|
656 | default: |
---|
657 | { |
---|
658 | WCHAR* pSymname; |
---|
659 | DWORD udtkind; |
---|
660 | |
---|
661 | if( SymGetTypeInfo_( hProcess, modBase, typeIndex, TI_GET_UDTKIND, &udtkind) ) |
---|
662 | { |
---|
663 | switch( (UdtKind)udtkind ) |
---|
664 | { |
---|
665 | case UdtStruct: fprintf(log_file, "struct "); break; |
---|
666 | case UdtClass: fprintf(log_file, "class "); break; |
---|
667 | case UdtUnion: fprintf(log_file, "union "); break; |
---|
668 | default: fprintf(log_file, "<unknown udtkind %d> ", udtkind); break; |
---|
669 | } |
---|
670 | } |
---|
671 | if( SymGetTypeInfo_( hProcess, modBase, typeIndex, TI_GET_SYMNAME, &pSymname ) ) |
---|
672 | { |
---|
673 | fprintf(log_file, "%ls", pSymname); |
---|
674 | LocalFree( pSymname ); |
---|
675 | } |
---|
676 | else |
---|
677 | fprintf(log_file, "<TODO typename of symtag %d>", symtag); break; |
---|
678 | } |
---|
679 | break; |
---|
680 | } |
---|
681 | |
---|
682 | if( withParens ) |
---|
683 | fprintf(log_file, ")"); |
---|
684 | } |
---|
685 | |
---|
686 | |
---|
687 | /// Prints the bytes in the target location. |
---|
688 | /// |
---|
689 | /// @param log_file Log file |
---|
690 | /// @param p Pointer to the data |
---|
691 | /// @param length Length of the data in bytes |
---|
692 | static VOID |
---|
693 | Dhp__PrintValueBytes( |
---|
694 | FILE* log_file, |
---|
695 | BYTE* p, |
---|
696 | ULONG64 length) |
---|
697 | { |
---|
698 | ULONG64 i; |
---|
699 | |
---|
700 | fprintf(log_file, "<bytes:"); |
---|
701 | for( i = 0; i < length; ++i ) |
---|
702 | { |
---|
703 | fprintf(log_file, "%02X", p[i]); |
---|
704 | } |
---|
705 | fprintf(log_file, ">"); |
---|
706 | } |
---|
707 | |
---|
708 | |
---|
709 | /// Prints a wide string/char value. |
---|
710 | /// |
---|
711 | /// @param log_file Log file |
---|
712 | /// @param p Pointer to the value |
---|
713 | /// @param length Length of the value in bytes |
---|
714 | static VOID |
---|
715 | Dhp__PrintValueWideChars( |
---|
716 | FILE* log_file, |
---|
717 | WCHAR* wstr, |
---|
718 | ULONG64 length, |
---|
719 | BOOL isString) |
---|
720 | { |
---|
721 | ULONG64 i; |
---|
722 | char* buf; |
---|
723 | char delim; |
---|
724 | |
---|
725 | length /= sizeof(WCHAR); |
---|
726 | delim = ( isString || length > 1 ? '\"' : '\'' ); |
---|
727 | fprintf(log_file, "%c", delim); |
---|
728 | buf = (char *)LocalAlloc(LMEM_FIXED, MB_CUR_MAX+1); |
---|
729 | buf[MB_CUR_MAX] = '\0'; |
---|
730 | for( i = 0; i < length; ++i ) |
---|
731 | { |
---|
732 | int n; |
---|
733 | switch( wstr[i] ) |
---|
734 | { |
---|
735 | case L'\"': fprintf(log_file, "\\\""); break; |
---|
736 | case L'\'': fprintf(log_file, "\\\'"); break; |
---|
737 | case L'\\': fprintf(log_file, "\\\\"); break; |
---|
738 | case L'\a': fprintf(log_file, "\\a"); break; |
---|
739 | case L'\b': fprintf(log_file, "\\b"); break; |
---|
740 | case L'\f': fprintf(log_file, "\\f"); break; |
---|
741 | case L'\n': fprintf(log_file, "\\n"); break; |
---|
742 | case L'\r': fprintf(log_file, "\\r"); break; |
---|
743 | case L'\t': fprintf(log_file, "\\t"); break; |
---|
744 | case L'\v': fprintf(log_file, "\\v"); break; |
---|
745 | default: |
---|
746 | if( iswprint(wstr[i]) && (n=wctomb(buf, wstr[i])) > 0 ) |
---|
747 | { |
---|
748 | buf[n] = '\0'; |
---|
749 | fprintf(log_file, "%s", buf); |
---|
750 | } |
---|
751 | else fprintf(log_file, "\\u%04X", wstr[i]); |
---|
752 | break; |
---|
753 | } |
---|
754 | } |
---|
755 | LocalFree(buf); |
---|
756 | fprintf(log_file, "%c", delim); |
---|
757 | } |
---|
758 | |
---|
759 | |
---|
760 | /// Prints a string/char value. |
---|
761 | /// |
---|
762 | /// @param log_file Log file |
---|
763 | /// @param p Pointer to the value |
---|
764 | /// @param length Length of the value in bytes |
---|
765 | static VOID |
---|
766 | Dhp__PrintValueChars( |
---|
767 | FILE* log_file, |
---|
768 | char* str, |
---|
769 | ULONG64 length, |
---|
770 | BOOL isString) |
---|
771 | { |
---|
772 | ULONG64 i; |
---|
773 | char delim; |
---|
774 | |
---|
775 | length /= sizeof(char); |
---|
776 | delim = ( isString || length > 1 ? '\"' : '\'' ); |
---|
777 | fprintf(log_file, "%c", delim); |
---|
778 | for( i = 0; i < length; ++i ) |
---|
779 | { |
---|
780 | switch( str[i] ) |
---|
781 | { |
---|
782 | case '\"': fprintf(log_file, "\\\""); break; |
---|
783 | case '\'': fprintf(log_file, "\\\'"); break; |
---|
784 | case '\\': fprintf(log_file, "\\\\"); break; |
---|
785 | case '\a': fprintf(log_file, "\\a"); break; |
---|
786 | case '\b': fprintf(log_file, "\\b"); break; |
---|
787 | case '\f': fprintf(log_file, "\\f"); break; |
---|
788 | case '\n': fprintf(log_file, "\\n"); break; |
---|
789 | case '\r': fprintf(log_file, "\\r"); break; |
---|
790 | case '\t': fprintf(log_file, "\\t"); break; |
---|
791 | case '\v': fprintf(log_file, "\\v"); break; |
---|
792 | default: |
---|
793 | if( isprint((unsigned char)str[i]) ) fprintf(log_file, "%c", str[i]); |
---|
794 | else fprintf(log_file, "\\x%02X", (unsigned char)str[i]); |
---|
795 | break; |
---|
796 | } |
---|
797 | } |
---|
798 | fprintf(log_file, "%c", delim); |
---|
799 | } |
---|
800 | |
---|
801 | |
---|
802 | /// Prints a float value. |
---|
803 | /// |
---|
804 | /// @param log_file Log file |
---|
805 | /// @param p Pointer to the value |
---|
806 | /// @param length Length of the value in bytes |
---|
807 | static VOID |
---|
808 | Dhp__PrintValueFloat( |
---|
809 | FILE* log_file, |
---|
810 | VOID* p, |
---|
811 | ULONG64 length) |
---|
812 | { |
---|
813 | if( length == sizeof(float) ) fprintf(log_file, "%f", *(float*)p); |
---|
814 | else if( length == sizeof(double) ) fprintf(log_file, "%lf", *(double*)p); |
---|
815 | else if( length == sizeof(long double) ) fprintf(log_file, "%Lf", *(long double*)p); |
---|
816 | else |
---|
817 | { |
---|
818 | fprintf(log_file, "<unexpected length %I64u>", length); |
---|
819 | Dhp__PrintValueBytes(log_file, (BYTE*)p, length); |
---|
820 | } |
---|
821 | } |
---|
822 | |
---|
823 | |
---|
824 | /// Prints a hex value. |
---|
825 | /// |
---|
826 | /// @param log_file Log file |
---|
827 | /// @param p Pointer to the value |
---|
828 | /// @param length Length of the value in bytes |
---|
829 | static VOID |
---|
830 | Dhp__PrintValueHex( |
---|
831 | FILE* log_file, |
---|
832 | VOID* p, |
---|
833 | ULONG64 length) |
---|
834 | { |
---|
835 | if( length == sizeof(UINT32) ) fprintf(log_file, "0x%I32X", *(UINT32*)p); |
---|
836 | else if( length == sizeof(UINT64) ) fprintf(log_file, "0x%I64X", *(UINT64*)p); |
---|
837 | else if( length == sizeof(char) ) fprintf(log_file, "0x%X", *(unsigned char*)p); |
---|
838 | else if( length == sizeof(short) ) fprintf(log_file, "0x%X", *(unsigned short*)p); |
---|
839 | else if( length == sizeof(int) ) fprintf(log_file, "0x%x", *(unsigned int*)p); |
---|
840 | else if( length == sizeof(long) ) fprintf(log_file, "0x%lX", *(unsigned long*)p); |
---|
841 | else if( length == sizeof(long long) ) fprintf(log_file, "0x%llX", *(unsigned long long*)p); |
---|
842 | else |
---|
843 | { |
---|
844 | fprintf(log_file, "<unexpected length %I64u>", length); |
---|
845 | Dhp__PrintValueBytes(log_file, (BYTE*)p, length); |
---|
846 | } |
---|
847 | } |
---|
848 | |
---|
849 | |
---|
850 | /// Prints an unsigned integer value. |
---|
851 | /// |
---|
852 | /// @param log_file Log file |
---|
853 | /// @param p Pointer to the value |
---|
854 | /// @param length Length of the value in bytes |
---|
855 | static VOID |
---|
856 | Dhp__PrintValueUnsigned( |
---|
857 | FILE* log_file, |
---|
858 | VOID* p, |
---|
859 | ULONG64 length) |
---|
860 | { |
---|
861 | if( length == sizeof(INT32) ) fprintf(log_file, "%I32u", *(INT32*)p); |
---|
862 | else if( length == sizeof(INT64) ) fprintf(log_file, "%I64u", *(INT64*)p); |
---|
863 | else if( length == sizeof(char) ) fprintf(log_file, "%u", *(unsigned char*)p); |
---|
864 | else if( length == sizeof(short) ) fprintf(log_file, "%u", *(unsigned short*)p); |
---|
865 | else if( length == sizeof(int) ) fprintf(log_file, "%u", *(unsigned int*)p); |
---|
866 | else if( length == sizeof(long) ) fprintf(log_file, "%lu", *(unsigned long*)p); |
---|
867 | else if( length == sizeof(long long) ) fprintf(log_file, "%llu", *(unsigned long long*)p); |
---|
868 | else |
---|
869 | { |
---|
870 | fprintf(log_file, "<unexpected length %I64u>", length); |
---|
871 | Dhp__PrintValueBytes(log_file, (BYTE*)p, length); |
---|
872 | } |
---|
873 | } |
---|
874 | |
---|
875 | |
---|
876 | /// Prints a signed integer value. |
---|
877 | /// |
---|
878 | /// @param log_file Log file |
---|
879 | /// @param p Pointer to the value |
---|
880 | /// @param length Length of the value in bytes |
---|
881 | static VOID |
---|
882 | Dhp__PrintValueSigned( |
---|
883 | FILE* log_file, |
---|
884 | VOID* p, |
---|
885 | ULONG64 length) |
---|
886 | { |
---|
887 | if( length == sizeof(INT32) ) fprintf(log_file, "%I32d", *(INT32*)p); |
---|
888 | else if( length == sizeof(INT64) ) fprintf(log_file, "%I64d", *(INT64*)p); |
---|
889 | else if( length == sizeof(char) ) fprintf(log_file, "%d", *(signed char*)p); |
---|
890 | else if( length == sizeof(short) ) fprintf(log_file, "%d", *(signed short*)p); |
---|
891 | else if( length == sizeof(int) ) fprintf(log_file, "%d", *(signed int*)p); |
---|
892 | else if( length == sizeof(long) ) fprintf(log_file, "%ld", *(signed long*)p); |
---|
893 | else if( length == sizeof(long long) ) fprintf(log_file, "%lld", *(signed long long*)p); |
---|
894 | else |
---|
895 | { |
---|
896 | fprintf(log_file, "<unexpected length %I64u>", length); |
---|
897 | Dhp__PrintValueBytes(log_file, (BYTE*)p, length); |
---|
898 | } |
---|
899 | } |
---|
900 | |
---|
901 | |
---|
902 | /// Prints a nul-terminated wide string value. |
---|
903 | /// Checks if the memory can be read from. |
---|
904 | /// |
---|
905 | /// @param log_file Log file |
---|
906 | /// @param str Target string |
---|
907 | static VOID |
---|
908 | Dhp__PrintValueCWideString( |
---|
909 | FILE* log_file, |
---|
910 | WCHAR* str) |
---|
911 | { |
---|
912 | ULONG64 length = 0; |
---|
913 | |
---|
914 | // check if memory is readable |
---|
915 | __try |
---|
916 | { |
---|
917 | while( str[length] != L'\0' ) |
---|
918 | ++length; |
---|
919 | } |
---|
920 | __except( EXCEPTION_EXECUTE_HANDLER ) |
---|
921 | { |
---|
922 | if( length ) Dhp__PrintValueWideChars(log_file, str, length*sizeof(WCHAR), TRUE); // print readable part |
---|
923 | fprintf(log_file, "<invalid memory>"); |
---|
924 | return; |
---|
925 | } |
---|
926 | |
---|
927 | // print string |
---|
928 | Dhp__PrintValueWideChars(log_file, str, length*sizeof(WCHAR), TRUE); |
---|
929 | } |
---|
930 | |
---|
931 | |
---|
932 | /// Prints a nul-terminated string value. |
---|
933 | /// Checks if the memory can be read from. |
---|
934 | /// |
---|
935 | /// @param log_file Log file |
---|
936 | /// @param str Target string |
---|
937 | static VOID |
---|
938 | Dhp__PrintValueCString( |
---|
939 | FILE* log_file, |
---|
940 | char* str) |
---|
941 | { |
---|
942 | ULONG64 length = 0; |
---|
943 | |
---|
944 | assert( log_file != NULL ); |
---|
945 | |
---|
946 | // check if memory is readable |
---|
947 | __try |
---|
948 | { |
---|
949 | while( str[length] != '\0' ) |
---|
950 | ++length; |
---|
951 | } |
---|
952 | __except( EXCEPTION_EXECUTE_HANDLER ) |
---|
953 | { |
---|
954 | if( length ) Dhp__PrintValueChars(log_file, str, length*sizeof(char), TRUE); // print readable part |
---|
955 | fprintf(log_file, "<invalid memory>"); |
---|
956 | return; |
---|
957 | } |
---|
958 | |
---|
959 | // print string |
---|
960 | Dhp__PrintValueChars(log_file, str, length*sizeof(char), TRUE); |
---|
961 | } |
---|
962 | |
---|
963 | |
---|
964 | // forward declaration of Dhp__PrintDataContents |
---|
965 | static VOID Dhp__PrintDataContents(DWORD typeIndex, PVOID pVariable, InterData* interData); |
---|
966 | |
---|
967 | |
---|
968 | /// Prints the value of the data symbol. |
---|
969 | /// Checks if the memory can be read from. |
---|
970 | /// |
---|
971 | /// @param typeIndex Type index of the symbol |
---|
972 | /// @param symtag Symbol tag |
---|
973 | /// @param pVariable Address to the symbol contents |
---|
974 | /// @param pInterData Inter data |
---|
975 | static VOID |
---|
976 | Dhp__PrintDataValue( |
---|
977 | DWORD typeIndex, |
---|
978 | DWORD symtag, |
---|
979 | PVOID pVariable, |
---|
980 | InterData* pInterData) |
---|
981 | { |
---|
982 | // inter data |
---|
983 | FILE* log_file; |
---|
984 | DWORD64 modBase; |
---|
985 | HANDLE hProcess; |
---|
986 | // |
---|
987 | ULONG64 length = 0; |
---|
988 | DWORD basetype; |
---|
989 | BOOL isValid = TRUE; |
---|
990 | |
---|
991 | assert( pInterData != NULL ); |
---|
992 | log_file = pInterData->log_file; |
---|
993 | modBase = pInterData->modBase; |
---|
994 | hProcess = pInterData->hProcess; |
---|
995 | |
---|
996 | if( !SymGetTypeInfo_(hProcess, modBase, typeIndex, TI_GET_LENGTH, &length) ) |
---|
997 | { |
---|
998 | fprintf(log_file, "<unknown data length>"); |
---|
999 | return; |
---|
1000 | } |
---|
1001 | |
---|
1002 | // check if memory is readable |
---|
1003 | __try |
---|
1004 | { |
---|
1005 | BYTE* p = (BYTE*)pVariable; |
---|
1006 | ULONG i; |
---|
1007 | BYTE b = 0; |
---|
1008 | for( i = 0; i < length; ++i ) |
---|
1009 | b += p[i]; // add to make sure it's not optimized out in release mode |
---|
1010 | } |
---|
1011 | __except( EXCEPTION_EXECUTE_HANDLER ) |
---|
1012 | { |
---|
1013 | fprintf(log_file, "<invalid memory>"); |
---|
1014 | return; |
---|
1015 | } |
---|
1016 | |
---|
1017 | switch( symtag ) |
---|
1018 | { |
---|
1019 | case SymTagBaseType: |
---|
1020 | { |
---|
1021 | if( !SymGetTypeInfo_(hProcess, modBase, typeIndex, TI_GET_BASETYPE, &basetype) ) |
---|
1022 | { |
---|
1023 | fprintf(log_file, "<basetype not found>"); |
---|
1024 | Dhp__PrintValueBytes(log_file, (BYTE*)pVariable, length); |
---|
1025 | break; |
---|
1026 | } |
---|
1027 | switch( basetype ) |
---|
1028 | { |
---|
1029 | case btInt: |
---|
1030 | case btLong: |
---|
1031 | Dhp__PrintValueSigned(log_file, pVariable, length); |
---|
1032 | break; |
---|
1033 | case btUInt: |
---|
1034 | case btULong: |
---|
1035 | Dhp__PrintValueUnsigned(log_file, pVariable, length); |
---|
1036 | break; |
---|
1037 | case btFloat: |
---|
1038 | Dhp__PrintValueFloat(log_file, pVariable, length); |
---|
1039 | break; |
---|
1040 | case btChar: |
---|
1041 | { |
---|
1042 | if( length == sizeof(char) ) fprintf(log_file, "%u ", *(unsigned char*)pVariable); |
---|
1043 | Dhp__PrintValueChars(log_file, (char*)pVariable, length, FALSE); |
---|
1044 | } |
---|
1045 | break; |
---|
1046 | case btWChar: |
---|
1047 | { |
---|
1048 | if( length == sizeof(WCHAR) ) fprintf(log_file, "%u ", *(WCHAR*)pVariable); |
---|
1049 | Dhp__PrintValueWideChars(log_file, (WCHAR*)pVariable, length, FALSE); |
---|
1050 | } |
---|
1051 | break; |
---|
1052 | case btVoid: |
---|
1053 | if( length > 0 ) Dhp__PrintValueBytes(log_file, (BYTE*)pVariable, length); |
---|
1054 | break; |
---|
1055 | default: |
---|
1056 | fprintf(log_file, "<TODO value of basetype %d>", basetype); |
---|
1057 | Dhp__PrintValueBytes(log_file, (BYTE*)pVariable, length); |
---|
1058 | break; |
---|
1059 | } |
---|
1060 | } |
---|
1061 | break; |
---|
1062 | case SymTagEnum: |
---|
1063 | Dhp__PrintValueHex(log_file, pVariable, length); |
---|
1064 | break; |
---|
1065 | case SymTagPointerType: |
---|
1066 | { |
---|
1067 | DWORD childTypeIndex; |
---|
1068 | DWORD childSymtag; |
---|
1069 | |
---|
1070 | fprintf(log_file, "0x%p", *(void**)pVariable); |
---|
1071 | if( SymGetTypeInfo_(hProcess, modBase, typeIndex, TI_GET_TYPE, &childTypeIndex) && |
---|
1072 | SymGetTypeInfo_(hProcess, modBase, childTypeIndex, TI_GET_SYMTAG, &childSymtag) && |
---|
1073 | childSymtag != SymTagPointerType ) |
---|
1074 | { |
---|
1075 | DWORD childBasetype; |
---|
1076 | |
---|
1077 | // child isn't a pointer, print the contents |
---|
1078 | fprintf(log_file, " "); |
---|
1079 | if( childSymtag == SymTagBaseType && |
---|
1080 | SymGetTypeInfo_(hProcess, modBase, childTypeIndex, TI_GET_BASETYPE, &childBasetype) && |
---|
1081 | (childBasetype == btChar || childBasetype == btWChar) ) |
---|
1082 | { |
---|
1083 | // string or wide string |
---|
1084 | if( childBasetype == btChar ) Dhp__PrintValueCString(log_file, *(char**)pVariable); |
---|
1085 | else if( childBasetype == btWChar ) Dhp__PrintValueCWideString(log_file, *(WCHAR**)pVariable); |
---|
1086 | else fprintf(log_file, "<unexpected child basetype %d>", childBasetype); |
---|
1087 | break; |
---|
1088 | } |
---|
1089 | Dhp__PrintDataValue(childTypeIndex, childSymtag, *(PVOID*)pVariable, pInterData); |
---|
1090 | } |
---|
1091 | } |
---|
1092 | break; |
---|
1093 | case SymTagArrayType: |
---|
1094 | { |
---|
1095 | DWORD childTypeIndex; |
---|
1096 | DWORD childSymtag; |
---|
1097 | DWORD count; |
---|
1098 | DWORD i; |
---|
1099 | |
---|
1100 | if( !SymGetTypeInfo_( hProcess, modBase, typeIndex, TI_GET_TYPE, &childTypeIndex) ) |
---|
1101 | { |
---|
1102 | fprintf(log_file, "<child type not found>"); |
---|
1103 | Dhp__PrintValueBytes(log_file, (BYTE*)pVariable, length); |
---|
1104 | break; |
---|
1105 | } |
---|
1106 | if( !SymGetTypeInfo_( hProcess, modBase, childTypeIndex, TI_GET_SYMTAG, &childSymtag) ) |
---|
1107 | { |
---|
1108 | fprintf(log_file, "<child symtag not found>"); |
---|
1109 | Dhp__PrintValueBytes(log_file, (BYTE*)pVariable, length); |
---|
1110 | break; |
---|
1111 | } |
---|
1112 | if( !SymGetTypeInfo_( hProcess, modBase, typeIndex, TI_GET_COUNT, &count) ) |
---|
1113 | { |
---|
1114 | fprintf(log_file, "<count not found>"); |
---|
1115 | Dhp__PrintValueBytes(log_file, (BYTE*)pVariable, length); |
---|
1116 | break; |
---|
1117 | } |
---|
1118 | // print values |
---|
1119 | fprintf(log_file, "{"); |
---|
1120 | for( i = 0; i < count; ++i ) |
---|
1121 | { |
---|
1122 | BYTE* pData = pVariable; |
---|
1123 | pData += i*(length/count); |
---|
1124 | if( i > 0 ) fprintf(log_file, ","); |
---|
1125 | Dhp__PrintDataValue(childTypeIndex, childSymtag, pData, pInterData); |
---|
1126 | } |
---|
1127 | fprintf(log_file, "}"); |
---|
1128 | } |
---|
1129 | break; |
---|
1130 | default: |
---|
1131 | #if 0 |
---|
1132 | {//## TODO show children of structs/unions |
---|
1133 | TI_FINDCHILDREN_PARAMS* children; |
---|
1134 | DWORD childCount; |
---|
1135 | DWORD i; |
---|
1136 | |
---|
1137 | // count children |
---|
1138 | if( !SymGetTypeInfo_(hProcess, modBase, typeIndex, TI_GET_CHILDRENCOUNT, &childCount) ) |
---|
1139 | { |
---|
1140 | fprintf(log_file, "<child count not found>"); |
---|
1141 | Dhp__PrintValueBytes(log_file, (BYTE*)pVariable, length); |
---|
1142 | break; |
---|
1143 | } |
---|
1144 | |
---|
1145 | // Prepare to get an array of "TypeIds", representing each of the children. |
---|
1146 | // SymGetTypeInfo(TI_FINDCHILDREN) expects more memory than just a |
---|
1147 | // TI_FINDCHILDREN_PARAMS struct has. Use derivation to accomplish this. |
---|
1148 | children = (TI_FINDCHILDREN_PARAMS*)LocalAlloc(LMEM_FIXED, sizeof(TI_FINDCHILDREN_PARAMS)+childCount*sizeof(ULONG)); |
---|
1149 | children->Count = childCount; |
---|
1150 | children->Start= 0; |
---|
1151 | |
---|
1152 | // Get the array of TypeIds, one for each child type |
---|
1153 | if( !SymGetTypeInfo_(hProcess, modBase, typeIndex, TI_FINDCHILDREN, &children) ) |
---|
1154 | { |
---|
1155 | fprintf(log_file, "<children not found>"); |
---|
1156 | Dhp__PrintValueBytes(log_file, (BYTE*)pVariable, length); |
---|
1157 | LocalFree(children); |
---|
1158 | return; |
---|
1159 | } |
---|
1160 | |
---|
1161 | // Iterate through each of the children |
---|
1162 | fprintf(log_file, "{"); |
---|
1163 | for( i = 0; i < childCount; ++i ) |
---|
1164 | { |
---|
1165 | DWORD childOffset; |
---|
1166 | DWORD childTypeid; |
---|
1167 | WCHAR* childName; |
---|
1168 | DWORD_PTR pData; |
---|
1169 | |
---|
1170 | if( i > 0 ) fprintf(log_file, ","); |
---|
1171 | |
---|
1172 | // Get the offset of the child member, relative to its parent |
---|
1173 | if( !SymGetTypeInfo_(hProcess, modBase, children->ChildId[i], TI_GET_OFFSET, &childOffset) ) |
---|
1174 | { |
---|
1175 | fprintf(log_file, "<child offset not found>"); |
---|
1176 | continue; |
---|
1177 | } |
---|
1178 | |
---|
1179 | // Get the real "TypeId" of the child. |
---|
1180 | if( !SymGetTypeInfo_(hProcess, modBase, children->ChildId[i], TI_GET_TYPEID, &childTypeid) ) |
---|
1181 | { |
---|
1182 | fprintf(log_file, "<child typeid not found>"); |
---|
1183 | continue; |
---|
1184 | } |
---|
1185 | |
---|
1186 | // Calculate the address of the member |
---|
1187 | pData = (DWORD_PTR)pVariable; |
---|
1188 | pData += childOffset; |
---|
1189 | |
---|
1190 | // print name of the child |
---|
1191 | if( !SymGetTypeInfo_(hProcess, modBase, childTypeid, TI_GET_SYMNAME, &childName) ) |
---|
1192 | { |
---|
1193 | fprintf(log_file, "<child symname not found>"); |
---|
1194 | continue; |
---|
1195 | } |
---|
1196 | fprintf(log_file, "%ws=", childName); |
---|
1197 | LocalFree(childName); |
---|
1198 | |
---|
1199 | // print contents of the child |
---|
1200 | Dhp__PrintDataContents(childTypeid, (PVOID)pData, interData); |
---|
1201 | } |
---|
1202 | fprintf(log_file, "}"); |
---|
1203 | |
---|
1204 | LocalFree(children); |
---|
1205 | } |
---|
1206 | #endif |
---|
1207 | Dhp__PrintValueBytes(log_file, (BYTE*)pVariable, length); |
---|
1208 | break; |
---|
1209 | } |
---|
1210 | } |
---|
1211 | |
---|
1212 | |
---|
1213 | /// Prints the contents of the data symbol. (type and value) |
---|
1214 | /// |
---|
1215 | /// @param typeIndex Type index of the symbol |
---|
1216 | /// @param pVariable Address of the symbol contents |
---|
1217 | /// @param pInterData Inter data |
---|
1218 | static VOID |
---|
1219 | Dhp__PrintDataContents( |
---|
1220 | DWORD typeIndex, |
---|
1221 | PVOID pVariable, |
---|
1222 | InterData* pInterData) |
---|
1223 | { |
---|
1224 | // inter data |
---|
1225 | FILE* log_file; |
---|
1226 | HANDLE hProcess; |
---|
1227 | DWORD64 modBase; |
---|
1228 | // |
---|
1229 | DWORD symtag; |
---|
1230 | |
---|
1231 | assert( pInterData != NULL ); |
---|
1232 | log_file = pInterData->log_file; |
---|
1233 | hProcess = pInterData->hProcess; |
---|
1234 | modBase = pInterData->modBase; |
---|
1235 | |
---|
1236 | if( SymGetTypeInfo_(hProcess, modBase, typeIndex, TI_GET_SYMTAG, &symtag) ) |
---|
1237 | { |
---|
1238 | // print type |
---|
1239 | Dhp__PrintTypeName(typeIndex, symtag, TRUE, pInterData); |
---|
1240 | // print value |
---|
1241 | Dhp__PrintDataValue(typeIndex, symtag, pVariable, pInterData); |
---|
1242 | } |
---|
1243 | else |
---|
1244 | fprintf(log_file, "<symtag not found>"); |
---|
1245 | } |
---|
1246 | |
---|
1247 | |
---|
1248 | /// Prints information about the data symbol. |
---|
1249 | /// |
---|
1250 | /// @param pSymInfo Symbol info |
---|
1251 | /// @param pInterData Inter data |
---|
1252 | static VOID |
---|
1253 | Dhp__PrintDataInfo( |
---|
1254 | PSYMBOL_INFO pSymInfo, |
---|
1255 | InterData* pInterData) |
---|
1256 | { |
---|
1257 | // inter data |
---|
1258 | FILE* log_file; |
---|
1259 | STACKFRAME* pStackframe; |
---|
1260 | BOOL as_arg_list; |
---|
1261 | BOOL log_params; |
---|
1262 | BOOL log_locals; |
---|
1263 | BOOL log_globals; |
---|
1264 | int nr_of_var; |
---|
1265 | // my data |
---|
1266 | DWORD_PTR pVariable = 0; |
---|
1267 | enum{ UNKNOWN, PARAM, LOCAL, GLOBAL } scope = UNKNOWN; |
---|
1268 | |
---|
1269 | assert( pSymInfo != NULL ); |
---|
1270 | assert( pInterData != NULL ); |
---|
1271 | assert( pSymInfo->Tag == SymTagData ); |
---|
1272 | log_file = pInterData->log_file; |
---|
1273 | pStackframe = pInterData->pStackframe; |
---|
1274 | as_arg_list = pInterData->as_arg_list; |
---|
1275 | log_params = pInterData->log_params; |
---|
1276 | log_locals = pInterData->log_locals; |
---|
1277 | log_globals = pInterData->log_globals; |
---|
1278 | nr_of_var = pInterData->nr_of_var; |
---|
1279 | |
---|
1280 | // Determine the scope and address of the variable |
---|
1281 | if( pSymInfo->Flags & SYMFLAG_REGREL ) |
---|
1282 | { |
---|
1283 | pVariable = pStackframe->AddrFrame.Offset; |
---|
1284 | pVariable += (DWORD_PTR)pSymInfo->Address; |
---|
1285 | if( pSymInfo->Flags & SYMFLAG_PARAMETER ) |
---|
1286 | scope = PARAM; // parameter |
---|
1287 | else if( pSymInfo->Flags & SYMFLAG_LOCAL ) |
---|
1288 | { |
---|
1289 | scope = LOCAL; // local |
---|
1290 | #if defined(_M_IX86) |
---|
1291 | if( (LONG64)pSymInfo->Address > 0) scope = PARAM; // parameter as local (bug in DBGHELP 5.1) |
---|
1292 | #endif |
---|
1293 | } |
---|
1294 | } |
---|
1295 | else if( pSymInfo->Flags & SYMFLAG_REGISTER ) |
---|
1296 | { |
---|
1297 | scope = ( pSymInfo->Flags & SYMFLAG_PARAMETER ? PARAM : LOCAL ); // register, optimized out(?) |
---|
1298 | } |
---|
1299 | else |
---|
1300 | { |
---|
1301 | pVariable = (DWORD_PTR)pSymInfo->Address; |
---|
1302 | scope = GLOBAL; // It must be a global variable |
---|
1303 | } |
---|
1304 | |
---|
1305 | // check if we should to log the variable |
---|
1306 | if( (scope == PARAM && log_params) || |
---|
1307 | (scope == LOCAL && log_locals) || |
---|
1308 | (scope == GLOBAL && log_globals) ) |
---|
1309 | { |
---|
1310 | // print prefix and name |
---|
1311 | if( as_arg_list ) |
---|
1312 | fprintf(log_file, "%s%s=", (nr_of_var ? ", " : ""), pSymInfo->Name); |
---|
1313 | else |
---|
1314 | fprintf(log_file, "\t%s = ", pSymInfo->Name); |
---|
1315 | |
---|
1316 | // print value |
---|
1317 | if( !(pSymInfo->Flags & SYMFLAG_REGREL) && (pSymInfo->Flags & SYMF_REGISTER) ) |
---|
1318 | fprintf(log_file, "<value optimized out>"); |
---|
1319 | else |
---|
1320 | { |
---|
1321 | pInterData->modBase = pSymInfo->ModBase; |
---|
1322 | Dhp__PrintDataContents(pSymInfo->TypeIndex, (PVOID)pVariable, pInterData); |
---|
1323 | } |
---|
1324 | |
---|
1325 | // print postfix |
---|
1326 | if( !as_arg_list ) |
---|
1327 | fprintf(log_file, "\n"); |
---|
1328 | pInterData->nr_of_var = ++nr_of_var; |
---|
1329 | } |
---|
1330 | } |
---|
1331 | |
---|
1332 | |
---|
1333 | /// Prints information about the symbol. |
---|
1334 | /// |
---|
1335 | /// @param pSymInfo Symbol info |
---|
1336 | /// @param pInterData Inter data |
---|
1337 | static VOID |
---|
1338 | Dhp__PrintSymbolInfo( |
---|
1339 | PSYMBOL_INFO pSymInfo, |
---|
1340 | InterData* pInterData) |
---|
1341 | { |
---|
1342 | assert( pSymInfo != NULL ); |
---|
1343 | assert( pInterData != NULL ); |
---|
1344 | |
---|
1345 | switch( pSymInfo->Tag ) |
---|
1346 | { |
---|
1347 | case SymTagData: Dhp__PrintDataInfo( pSymInfo, pInterData ); break; |
---|
1348 | default: /*fprintf(pInterData->log_file, "<unsupported symtag %d>", pSymInfo->Tag);*/ break; |
---|
1349 | } |
---|
1350 | } |
---|
1351 | |
---|
1352 | |
---|
1353 | /// Prints the details of one symbol to the log file. |
---|
1354 | /// Used as a callback for SymEnumSymbols. |
---|
1355 | /// |
---|
1356 | /// @param pSymInfo Symbol info |
---|
1357 | /// @param symSize Size of the symbol info structure |
---|
1358 | /// @param pData Inter data |
---|
1359 | static BOOL WINAPI |
---|
1360 | Dhp__EnumSymbolsCallback( |
---|
1361 | PSYMBOL_INFO pSymInfo, |
---|
1362 | ULONG symSize, |
---|
1363 | PVOID pData) |
---|
1364 | { |
---|
1365 | if( pSymInfo == NULL ) |
---|
1366 | return TRUE; // try other symbols |
---|
1367 | |
---|
1368 | if( pData == NULL ) |
---|
1369 | { |
---|
1370 | printf("Dhp__EnumSymbolsCallback: pData is NULL\n"); |
---|
1371 | return FALSE; |
---|
1372 | } |
---|
1373 | |
---|
1374 | Dhp__PrintSymbolInfo(pSymInfo, (InterData*)pData); |
---|
1375 | return TRUE; |
---|
1376 | } |
---|
1377 | |
---|
1378 | |
---|
1379 | /// Prints the source code of the target line. |
---|
1380 | /// Searches for the target file in the original path, |
---|
1381 | /// in the last src folder of the original path (relative) |
---|
1382 | /// and in the current directory. |
---|
1383 | /// |
---|
1384 | /// @param filename Original source file |
---|
1385 | /// @param line Target line |
---|
1386 | /// @param log_file Log file |
---|
1387 | static VOID |
---|
1388 | Dhp__PrintSourceLine( |
---|
1389 | FILE* log_file, |
---|
1390 | char* filename, |
---|
1391 | DWORD line) |
---|
1392 | { |
---|
1393 | char path[MAX_PATH*3]; |
---|
1394 | char pathBuffer[MAX_PATH+1]; |
---|
1395 | char* p; |
---|
1396 | |
---|
1397 | assert( filename != NULL ); |
---|
1398 | assert( log_file != NULL ); |
---|
1399 | |
---|
1400 | // generate search paths |
---|
1401 | strcpy(path, filename); // original path |
---|
1402 | p = strrchr(path, '\\'); |
---|
1403 | if( p ) |
---|
1404 | { |
---|
1405 | memcpy(p, ";\0", 2); |
---|
1406 | p = strstr(filename, "\\src\\"); |
---|
1407 | if( p ) |
---|
1408 | { |
---|
1409 | while( strstr(p+1, "\\src\\") ) |
---|
1410 | p = strstr(p+1, "\\src\\"); |
---|
1411 | strcat(path, p+1); // last src folder path |
---|
1412 | p = strrchr(path, '\\'); |
---|
1413 | memcpy(p, ";\0", 2); |
---|
1414 | } |
---|
1415 | filename = strrchr(filename, '\\')+1; |
---|
1416 | } |
---|
1417 | else |
---|
1418 | *path = '\0'; // no path |
---|
1419 | strcat(path, "."); // current directoy |
---|
1420 | |
---|
1421 | // search for file and line |
---|
1422 | if( SearchPathA(path, filename, NULL, MAX_PATH, pathBuffer, NULL) ) |
---|
1423 | { |
---|
1424 | char code[1024+1]; |
---|
1425 | DWORD i = 1; |
---|
1426 | FILE* fp; |
---|
1427 | |
---|
1428 | fp = fopen(pathBuffer, "rt"); |
---|
1429 | if( fp == NULL ) |
---|
1430 | return; |
---|
1431 | |
---|
1432 | code[1024] = '\0'; |
---|
1433 | while( fgets(code, 1024, fp) ) |
---|
1434 | { |
---|
1435 | if( i == line ) |
---|
1436 | {// found line |
---|
1437 | char* term = strchr(code, '\n'); |
---|
1438 | if( term && term != code && term[-1] == '\r' ) --term; |
---|
1439 | if( term ) *term = '\0'; |
---|
1440 | fprintf(log_file, "%d\t%s\n", line, code); |
---|
1441 | break; |
---|
1442 | } |
---|
1443 | if( strchr(code, '\n') ) |
---|
1444 | ++i; |
---|
1445 | } |
---|
1446 | fclose(fp); |
---|
1447 | } |
---|
1448 | } |
---|
1449 | |
---|
1450 | |
---|
1451 | /// Prints details of one function to the log file. |
---|
1452 | /// |
---|
1453 | /// @param interData Inter data |
---|
1454 | static VOID |
---|
1455 | Dhp__PrintFunctionDetails( |
---|
1456 | InterData* pInterData) |
---|
1457 | { |
---|
1458 | // inter data |
---|
1459 | HANDLE hProcess; |
---|
1460 | STACKFRAME* pStackframe; |
---|
1461 | FILE* log_file; |
---|
1462 | int nr_of_frame; |
---|
1463 | // |
---|
1464 | PSYMBOL_INFO pSymbolInfo; |
---|
1465 | DWORD64 funcDisplacement=0; |
---|
1466 | IMAGEHLP_STACK_FRAME imagehlpStackFrame; |
---|
1467 | IMAGEHLP_LINE imagehlpLine; |
---|
1468 | DWORD lineDisplacement=0; |
---|
1469 | |
---|
1470 | assert( pInterData != NULL ); |
---|
1471 | hProcess = pInterData->hProcess; |
---|
1472 | pStackframe = pInterData->pStackframe; |
---|
1473 | log_file = pInterData->log_file; |
---|
1474 | nr_of_frame = pInterData->nr_of_frame; |
---|
1475 | |
---|
1476 | // frame info |
---|
1477 | fprintf(log_file, |
---|
1478 | "#%d 0x%p", |
---|
1479 | nr_of_frame, (void*)(DWORD_PTR)pStackframe->AddrPC.Offset); |
---|
1480 | |
---|
1481 | // restrict symbol enumeration to this frame only |
---|
1482 | ZeroMemory(&imagehlpStackFrame, sizeof(IMAGEHLP_STACK_FRAME)); |
---|
1483 | imagehlpStackFrame.InstructionOffset = pStackframe->AddrPC.Offset; |
---|
1484 | SymSetContext_(hProcess, &imagehlpStackFrame, 0); |
---|
1485 | |
---|
1486 | // function name and displacement |
---|
1487 | pSymbolInfo = (PSYMBOL_INFO)LocalAlloc(LMEM_FIXED, sizeof(SYMBOL_INFO)+1024); |
---|
1488 | pSymbolInfo->SizeOfStruct = sizeof(SYMBOL_INFO); |
---|
1489 | pSymbolInfo->MaxNameLen = 1024; |
---|
1490 | if( SymFromAddr_(hProcess, pStackframe->AddrPC.Offset, &funcDisplacement, pSymbolInfo) == TRUE ) |
---|
1491 | { |
---|
1492 | fprintf(log_file, |
---|
1493 | " in %.1024s+0x%I64X (", |
---|
1494 | pSymbolInfo->Name, funcDisplacement); |
---|
1495 | |
---|
1496 | // log all function parameters |
---|
1497 | pInterData->as_arg_list = TRUE; |
---|
1498 | pInterData->log_params = TRUE; |
---|
1499 | pInterData->log_locals = FALSE; |
---|
1500 | pInterData->log_globals = FALSE; |
---|
1501 | pInterData->nr_of_var = 0; |
---|
1502 | SymEnumSymbols_(hProcess, 0, 0, Dhp__EnumSymbolsCallback, pInterData); |
---|
1503 | |
---|
1504 | fprintf(log_file, |
---|
1505 | ")"); |
---|
1506 | } |
---|
1507 | else |
---|
1508 | fprintf(log_file, |
---|
1509 | "in <unknown function>"); |
---|
1510 | |
---|
1511 | // find the source line for this function. |
---|
1512 | imagehlpLine.SizeOfStruct = sizeof(IMAGEHLP_LINE); |
---|
1513 | if( SymGetLineFromAddr_(hProcess, pStackframe->AddrPC.Offset, &lineDisplacement, &imagehlpLine) != 0 ) |
---|
1514 | { |
---|
1515 | char* filename = imagehlpLine.FileName; |
---|
1516 | DWORD line = imagehlpLine.LineNumber; |
---|
1517 | |
---|
1518 | fprintf(log_file, |
---|
1519 | " at %s:%d\n", |
---|
1520 | filename, line); |
---|
1521 | |
---|
1522 | Dhp__PrintSourceLine(log_file, filename, line); |
---|
1523 | } |
---|
1524 | else |
---|
1525 | fprintf(log_file, |
---|
1526 | "\n"); |
---|
1527 | |
---|
1528 | // log all function local variables |
---|
1529 | pInterData->as_arg_list = FALSE; |
---|
1530 | pInterData->log_params = FALSE; |
---|
1531 | pInterData->log_locals = TRUE; |
---|
1532 | pInterData->log_globals = FALSE; |
---|
1533 | pInterData->nr_of_var = 0; |
---|
1534 | SymEnumSymbols_(hProcess, 0, 0, Dhp__EnumSymbolsCallback, pInterData); |
---|
1535 | |
---|
1536 | pInterData->nr_of_frame = ++nr_of_frame; |
---|
1537 | LocalFree(pSymbolInfo); |
---|
1538 | } |
---|
1539 | |
---|
1540 | |
---|
1541 | /// Walks over the stack and prints all relevant information to the log file. |
---|
1542 | /// |
---|
1543 | /// @param context Exception context |
---|
1544 | /// @param log_file Log file |
---|
1545 | static VOID |
---|
1546 | Dhp__PrintStacktrace( |
---|
1547 | CONTEXT *context, |
---|
1548 | FILE *log_file) |
---|
1549 | { |
---|
1550 | HANDLE hProcess = GetCurrentProcess(); |
---|
1551 | STACKFRAME stackframe; |
---|
1552 | DWORD machine; |
---|
1553 | CONTEXT ctx; |
---|
1554 | InterData interData; |
---|
1555 | int skip = 0; |
---|
1556 | int i; |
---|
1557 | |
---|
1558 | assert( log_file != NULL ); |
---|
1559 | |
---|
1560 | fprintf(log_file, |
---|
1561 | "\nStacktrace:\n"); |
---|
1562 | |
---|
1563 | // Use thread information - if not supplied. |
---|
1564 | if( context == NULL ) |
---|
1565 | { |
---|
1566 | // If no context is supplied, skip 1 frame |
---|
1567 | skip = 1; |
---|
1568 | |
---|
1569 | ctx.ContextFlags = CONTEXT_FULL; |
---|
1570 | if( GetThreadContext(GetCurrentThread(), &ctx) ) |
---|
1571 | context = &ctx; |
---|
1572 | } |
---|
1573 | |
---|
1574 | if( context == NULL ) |
---|
1575 | return; |
---|
1576 | |
---|
1577 | // Write the stack trace |
---|
1578 | ZeroMemory(&stackframe, sizeof(STACKFRAME)); |
---|
1579 | stackframe.AddrPC.Mode = AddrModeFlat; |
---|
1580 | stackframe.AddrStack.Mode = AddrModeFlat; |
---|
1581 | stackframe.AddrFrame.Mode = AddrModeFlat; |
---|
1582 | #if defined(_M_IX86) |
---|
1583 | machine = IMAGE_FILE_MACHINE_I386; |
---|
1584 | stackframe.AddrPC.Offset = context->Eip; |
---|
1585 | stackframe.AddrStack.Offset = context->Esp; |
---|
1586 | stackframe.AddrFrame.Offset = context->Ebp; |
---|
1587 | #else /* defined(_M_IX86) */ |
---|
1588 | #error FIXME add more processors |
---|
1589 | some compilers don't stop on #error, this line makes sure it errors out |
---|
1590 | #endif |
---|
1591 | |
---|
1592 | interData.hProcess = hProcess; |
---|
1593 | interData.log_file = log_file; |
---|
1594 | interData.pStackframe = &stackframe; |
---|
1595 | interData.nr_of_frame = 0; |
---|
1596 | for( i = 0; ; ++i ) |
---|
1597 | { |
---|
1598 | if( !StackWalk_(machine, hProcess, GetCurrentThread(), |
---|
1599 | &stackframe, context, NULL, SymFunctionTableAccess_, |
---|
1600 | SymGetModuleBase_, NULL)) |
---|
1601 | { |
---|
1602 | break; |
---|
1603 | } |
---|
1604 | |
---|
1605 | if( i >= skip ) |
---|
1606 | { |
---|
1607 | // Check that the address is not zero. |
---|
1608 | // Sometimes StackWalk returns TRUE with a frame of zero. |
---|
1609 | if( stackframe.AddrPC.Offset != 0 ) |
---|
1610 | Dhp__PrintFunctionDetails(&interData); |
---|
1611 | } |
---|
1612 | } |
---|
1613 | } |
---|
1614 | |
---|
1615 | |
---|
1616 | typedef BOOL (WINAPI *ISDEBUGGERPRESENT)(void); |
---|
1617 | /// Checks if a debugger is attached to this process |
---|
1618 | /// |
---|
1619 | /// @return TRUE is a debugger is present |
---|
1620 | static BOOL |
---|
1621 | Dhp__IsDebuggerPresent() |
---|
1622 | { |
---|
1623 | HANDLE kernel32_dll; |
---|
1624 | ISDEBUGGERPRESENT IsDebuggerPresent_; |
---|
1625 | BOOL result; |
---|
1626 | |
---|
1627 | kernel32_dll = LoadLibraryA("kernel32.dll"); |
---|
1628 | if( kernel32_dll == NULL ) |
---|
1629 | return FALSE; |
---|
1630 | |
---|
1631 | IsDebuggerPresent_ = (ISDEBUGGERPRESENT)GetProcAddress(kernel32_dll, "IsDebuggerPresent"); |
---|
1632 | if( IsDebuggerPresent_ ) |
---|
1633 | result = IsDebuggerPresent_(); |
---|
1634 | else |
---|
1635 | result = FALSE; |
---|
1636 | |
---|
1637 | FreeLibrary(kernel32_dll); |
---|
1638 | |
---|
1639 | return result; |
---|
1640 | } |
---|
1641 | |
---|
1642 | |
---|
1643 | /// Loads the dbghelp.dll library. |
---|
1644 | /// |
---|
1645 | /// @return TRUE is sucessfull |
---|
1646 | static BOOL |
---|
1647 | Dhp__LoadDbghelpDll() |
---|
1648 | { |
---|
1649 | dbghelp_dll = LoadLibraryA(DBGHELP_DLL); |
---|
1650 | if( dbghelp_dll != INVALID_HANDLE_VALUE ) |
---|
1651 | { |
---|
1652 | DWORD opts; |
---|
1653 | |
---|
1654 | // load the functions |
---|
1655 | MiniDumpWriteDump_ = (MINIDUMPWRITEDUMP)GetProcAddress(dbghelp_dll, "MiniDumpWriteDump"); |
---|
1656 | SymInitialize_ = (SYMINITIALIZE)GetProcAddress(dbghelp_dll, "SymInitialize"); |
---|
1657 | SymSetOptions_ = (SYMSETOPTIONS)GetProcAddress(dbghelp_dll, "SymSetOptions"); |
---|
1658 | SymGetOptions_ = (SYMGETOPTIONS)GetProcAddress(dbghelp_dll, "SymGetOptions"); |
---|
1659 | SymCleanup_ = (SYMCLEANUP)GetProcAddress(dbghelp_dll, "SymCleanup"); |
---|
1660 | SymGetTypeInfo_ = (SYMGETTYPEINFO)GetProcAddress(dbghelp_dll, "SymGetTypeInfo"); |
---|
1661 | SymGetLineFromAddr_ = (SYMGETLINEFROMADDR)GetProcAddress(dbghelp_dll, "SymGetLineFromAddr"); |
---|
1662 | SymEnumSymbols_ = (SYMENUMSYMBOLS)GetProcAddress(dbghelp_dll, "SymEnumSymbols"); |
---|
1663 | SymSetContext_ = (SYMSETCONTEXT)GetProcAddress(dbghelp_dll, "SymSetContext"); |
---|
1664 | SymFromAddr_ = (SYMFROMADDR)GetProcAddress(dbghelp_dll, "SymFromAddr"); |
---|
1665 | StackWalk_ = (STACKWALK)GetProcAddress(dbghelp_dll, "StackWalk"); |
---|
1666 | SymFunctionTableAccess_ = (SYMFUNCTIONTABLEACCESS)GetProcAddress(dbghelp_dll, "SymFunctionTableAccess"); |
---|
1667 | SymGetModuleBase_ = (SYMGETMODULEBASE)GetProcAddress(dbghelp_dll, "SymGetModuleBase"); |
---|
1668 | |
---|
1669 | if( MiniDumpWriteDump_ && |
---|
1670 | SymInitialize_ && SymSetOptions_ && SymGetOptions_ && |
---|
1671 | SymCleanup_ && SymGetTypeInfo_ && SymGetLineFromAddr_ && |
---|
1672 | SymEnumSymbols_ && SymSetContext_ && SymFromAddr_ && StackWalk_ && |
---|
1673 | SymFunctionTableAccess_ && SymGetModuleBase_ ) |
---|
1674 | { |
---|
1675 | // initialize the symbol loading code |
---|
1676 | opts = SymGetOptions_(); |
---|
1677 | |
---|
1678 | // Set the 'load lines' option to retrieve line number information. |
---|
1679 | // Set the 'deferred loads' option to map the debug info in memory only when needed. |
---|
1680 | SymSetOptions_(opts | SYMOPT_LOAD_LINES | SYMOPT_DEFERRED_LOADS); |
---|
1681 | |
---|
1682 | // Initialize the dbghelp DLL with the default path and automatic |
---|
1683 | // module enumeration (and loading of symbol tables) for this process. |
---|
1684 | SymInitialize_(GetCurrentProcess(), NULL, TRUE); |
---|
1685 | |
---|
1686 | return TRUE; |
---|
1687 | } |
---|
1688 | } |
---|
1689 | |
---|
1690 | if( dbghelp_dll ) |
---|
1691 | { |
---|
1692 | FreeLibrary(dbghelp_dll); |
---|
1693 | dbghelp_dll = NULL; |
---|
1694 | } |
---|
1695 | |
---|
1696 | return FALSE; |
---|
1697 | } |
---|
1698 | |
---|
1699 | |
---|
1700 | /// Unloads the dbghelp.dll library. |
---|
1701 | static VOID |
---|
1702 | Dhp__UnloadDbghlpDll() |
---|
1703 | { |
---|
1704 | SymCleanup_(GetCurrentProcess()); |
---|
1705 | |
---|
1706 | FreeLibrary(dbghelp_dll); |
---|
1707 | dbghelp_dll = NULL; |
---|
1708 | } |
---|
1709 | |
---|
1710 | |
---|
1711 | /// Creates the report and minidump files. |
---|
1712 | /// Puts the resulting pathnames in the arguments. |
---|
1713 | /// The buffers must be at least MAX_PATH+1 in size. |
---|
1714 | /// |
---|
1715 | /// @param out_lpszLogFileName Buffer for the report filename |
---|
1716 | /// @param out_lpszDmpFileName Buffer for the minidump filename |
---|
1717 | /// @return TRUE if the files were created |
---|
1718 | static BOOL |
---|
1719 | Dhp__CreateFiles( |
---|
1720 | char* out_logFileName, |
---|
1721 | char* out_dmpFileName) |
---|
1722 | { |
---|
1723 | #define LEN_TIMESTAMP 14 // "YYYYMMDDhhmmss" |
---|
1724 | #define LEN_EXT 4 // ".rpt" or ".dmp" |
---|
1725 | char baseFileName[MAX_PATH+1]; |
---|
1726 | char timestamp[LEN_TIMESTAMP+1]; |
---|
1727 | FILE* fp; |
---|
1728 | time_t now; |
---|
1729 | |
---|
1730 | // Generate base filename for the report/minidump |
---|
1731 | ZeroMemory(baseFileName, sizeof(baseFileName)); |
---|
1732 | if( GetModuleFileName(NULL, baseFileName, MAX_PATH-LEN_TIMESTAMP-LEN_EXT) ) |
---|
1733 | { |
---|
1734 | char* pTerm = strrchr(baseFileName, '\\'); |
---|
1735 | if( pTerm == NULL ) pTerm = baseFileName; |
---|
1736 | pTerm = strrchr(pTerm, '.'); |
---|
1737 | if( pTerm ) *pTerm = '\0'; // remove extension |
---|
1738 | } |
---|
1739 | else if( GetTempPathA(MAX_PATH-6-LEN_TIMESTAMP-LEN_EXT, baseFileName) ) |
---|
1740 | {// in temp folder |
---|
1741 | strcat(baseFileName, DBG_DEFAULT_FILENAME); |
---|
1742 | } |
---|
1743 | else |
---|
1744 | {// in current folder |
---|
1745 | strcpy(baseFileName, DBG_DEFAULT_FILENAME); |
---|
1746 | } |
---|
1747 | |
---|
1748 | time(&now); |
---|
1749 | #if 0 |
---|
1750 | szTimestamp[0] = '\0'; |
---|
1751 | #else |
---|
1752 | strftime(timestamp, sizeof(timestamp), "%Y%m%d%H%M%S", localtime(&now)); |
---|
1753 | #endif |
---|
1754 | timestamp[LEN_TIMESTAMP] = '\0'; |
---|
1755 | |
---|
1756 | sprintf(out_logFileName, "%s%s.rpt", baseFileName, timestamp); |
---|
1757 | fp = fopen(out_logFileName, "w"); |
---|
1758 | if( fp == NULL ) |
---|
1759 | return FALSE; // failed to create log file |
---|
1760 | fclose(fp); |
---|
1761 | |
---|
1762 | sprintf(out_dmpFileName, "%s%s.dmp", baseFileName, timestamp); |
---|
1763 | fp = fopen(out_dmpFileName, "w"); |
---|
1764 | if( fp == NULL) |
---|
1765 | return FALSE; // failed to create dump file |
---|
1766 | fclose(fp); |
---|
1767 | |
---|
1768 | return TRUE; // success |
---|
1769 | #undef LEN_EXT |
---|
1770 | #undef LEN_TIMESTAMP |
---|
1771 | } |
---|
1772 | |
---|
1773 | |
---|
1774 | /// Unhandled exception handler. Where the magic starts... ;D |
---|
1775 | /// |
---|
1776 | /// @param ptrs Exception information |
---|
1777 | /// @return What to do with the exception |
---|
1778 | LONG WINAPI |
---|
1779 | Dhp__UnhandledExceptionFilter(PEXCEPTION_POINTERS ptrs) |
---|
1780 | { |
---|
1781 | char szLogFileName[MAX_PATH+1]; |
---|
1782 | char szDmpFileName[MAX_PATH+1]; |
---|
1783 | FILE* log_file; |
---|
1784 | |
---|
1785 | // check if the crash handler was already loaded (crash while handling the crash) |
---|
1786 | if( dbghelp_dll != INVALID_HANDLE_VALUE ) |
---|
1787 | return EXCEPTION_CONTINUE_SEARCH; |
---|
1788 | |
---|
1789 | // don't log anything if we're running inside a debugger ... |
---|
1790 | if( Dhp__IsDebuggerPresent() == TRUE ) |
---|
1791 | return EXCEPTION_CONTINUE_SEARCH; |
---|
1792 | |
---|
1793 | // ... or if we can't load dbghelp.dll ... |
---|
1794 | if( Dhp__LoadDbghelpDll() == FALSE ) |
---|
1795 | return EXCEPTION_CONTINUE_SEARCH; |
---|
1796 | |
---|
1797 | // ... or if we can't create the log files |
---|
1798 | if( Dhp__CreateFiles(szLogFileName, szDmpFileName) == FALSE ) |
---|
1799 | return EXCEPTION_CONTINUE_SEARCH; |
---|
1800 | |
---|
1801 | // open log file |
---|
1802 | log_file = fopen(szLogFileName, "wt"); |
---|
1803 | |
---|
1804 | // print information about the process |
---|
1805 | Dhp__PrintProcessInfo( |
---|
1806 | ptrs ? ptrs->ExceptionRecord : NULL, |
---|
1807 | ptrs ? ptrs->ContextRecord : NULL, |
---|
1808 | log_file); |
---|
1809 | |
---|
1810 | // print the stacktrace |
---|
1811 | Dhp__PrintStacktrace( |
---|
1812 | ptrs ? ptrs->ContextRecord : NULL, |
---|
1813 | log_file); |
---|
1814 | |
---|
1815 | // write the minidump file and use the callback to print the list of modules to the log file |
---|
1816 | Dhp__WriteMinidumpFile( |
---|
1817 | szDmpFileName, |
---|
1818 | ptrs, |
---|
1819 | Dhp__PrintModuleInfoCallback, |
---|
1820 | log_file); |
---|
1821 | |
---|
1822 | fclose(log_file); |
---|
1823 | |
---|
1824 | Dhp__UnloadDbghlpDll(); |
---|
1825 | |
---|
1826 | // inform the user |
---|
1827 | fprintf(stderr, |
---|
1828 | "\n" |
---|
1829 | "This application has halted due to an unexpected error.\n" |
---|
1830 | "A crash report and minidump file were saved to disk, you can find them here:\n" |
---|
1831 | "%s\n" |
---|
1832 | "%s\n" |
---|
1833 | DBG_EXTENDED_INFORMATION |
---|
1834 | "\n" |
---|
1835 | "NOTE: The crash report and minidump files can contain sensitive information\n" |
---|
1836 | "(filenames, partial file content, usernames and passwords etc.)\n", |
---|
1837 | szLogFileName, |
---|
1838 | szDmpFileName); |
---|
1839 | |
---|
1840 | // terminate the application |
---|
1841 | return EXCEPTION_EXECUTE_HANDLER; |
---|
1842 | } |
---|
1843 | |
---|
1844 | |
---|
1845 | |
---|
1846 | ///////////////////////////////////////////////////////////////////// |
---|
1847 | // DLL stuff |
---|
1848 | #if !defined(DBG_EMBEDDED) |
---|
1849 | |
---|
1850 | |
---|
1851 | /// Previous exception filter. |
---|
1852 | static LPTOP_LEVEL_EXCEPTION_FILTER previousFilter; |
---|
1853 | |
---|
1854 | |
---|
1855 | #if defined(__GNUC__) |
---|
1856 | // GNU : define DLL load/unload functions |
---|
1857 | static void Dhp__OnStartup(void) __attribute__((constructor)); |
---|
1858 | static void Dhp__OnExit(void) __attribute__((destructor)); |
---|
1859 | #endif /* defined(__GNUC__) */ |
---|
1860 | |
---|
1861 | |
---|
1862 | /// Installs as the unhandled exception handler. |
---|
1863 | void Dhp__OnStartup(void) |
---|
1864 | { |
---|
1865 | // Install the unhandled exception filter function |
---|
1866 | previousFilter = SetUnhandledExceptionFilter(Dhp__UnhandledExceptionFilter); |
---|
1867 | } |
---|
1868 | |
---|
1869 | |
---|
1870 | /// Uninstalls the handler. |
---|
1871 | void Dhp__OnExit(void) |
---|
1872 | { |
---|
1873 | SetUnhandledExceptionFilter(previousFilter); |
---|
1874 | } |
---|
1875 | |
---|
1876 | |
---|
1877 | #if !defined(__GNUC__) |
---|
1878 | // Windows : invoke DLL load/unload functions |
---|
1879 | BOOL APIENTRY DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID lpReserved) |
---|
1880 | { |
---|
1881 | switch( dwReason ) |
---|
1882 | { |
---|
1883 | case DLL_PROCESS_ATTACH: Dhp__OnStartup(); break; |
---|
1884 | case DLL_PROCESS_DETACH: Dhp__OnExit(); break; |
---|
1885 | } |
---|
1886 | return TRUE; |
---|
1887 | } |
---|
1888 | #endif /* !defined(__GNUC__) */ |
---|
1889 | |
---|
1890 | |
---|
1891 | |
---|
1892 | #endif /* !defined(DBG_EMBEDDED) */ |
---|
1893 | |
---|
1894 | |
---|
1895 | |
---|
1896 | #endif /* _WIN32 */ |
---|