Mercurial > projects > ddmd
annotate dbg/CallStackInfo.d @ 189:a4c9de8e39b3
Now compileable with dmd2.053
| author | Abscissa |
|---|---|
| date | Wed, 08 Jun 2011 02:21:32 -0400 |
| parents | 43073c7c7769 |
| children | 52188e7e3fb5 |
| rev | line source |
|---|---|
| 70 | 1 /** |
| 2 A simple runtime crash handler which collects various informations about | |
| 3 the crash such as registers, stack traces, and loaded modules. | |
| 4 | |
| 5 TODO: | |
| 6 * Threading support | |
| 7 * Stack dumps | |
| 8 | |
| 9 Authors: | |
| 10 Jeremie Pelletier | |
| 11 | |
| 12 License: | |
| 13 Public Domain | |
| 14 */ | |
| 15 module dbg.CallStackInfo; | |
| 16 | |
| 17 import dbg.Debug; | |
| 18 import dbg.image.PE; | |
| 19 | |
| 20 import core.stdc.stdio; | |
| 21 import core.sys.windows.windows; | |
| 22 | |
| 189 | 23 import rt.deh; |
| 24 | |
| 70 | 25 class CallStackInfo |
| 26 { | |
| 27 this(EXCEPTION_POINTERS* e = null) | |
| 28 { | |
| 29 size_t[16] buff; | |
| 30 size_t[] backtrace = buff[]; | |
| 31 size_t numTraces = 0; | |
| 32 | |
| 33 bool skipFirst = false; | |
| 34 | |
| 35 size_t ip = void, bp = void; | |
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36 version(Windows) { |
| 70 | 37 if (e !is null) { |
| 38 ip = e.ContextRecord.Eip; | |
| 39 bp = e.ContextRecord.Ebp; | |
| 40 | |
| 41 error = _d_translate_se_to_d_exception(e.ExceptionRecord); | |
| 42 append(backtrace, numTraces, ip); | |
| 43 } else { | |
| 44 asm { | |
| 45 mov bp, EBP; | |
| 46 } | |
| 47 } | |
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48 } |
| 70 | 49 |
| 50 while (true) { | |
| 51 ip = cast(size_t)*(cast(void**)bp + 1); | |
| 52 if (ip == 0) break; | |
| 53 | |
| 54 append(backtrace, numTraces, ip); | |
| 55 | |
| 56 bp = cast(size_t)*cast(void**)bp; | |
| 57 } | |
| 58 | |
| 59 frames = new StackFrameInfo[numTraces]; | |
| 60 ResolveStackFrames(backtrace[0..numTraces], frames); | |
| 61 } | |
| 62 | |
| 63 Throwable error; | |
| 64 StackFrameInfo[] frames; | |
| 65 | |
| 79 | 66 override string toString() |
| 67 { | |
| 70 | 68 string text; |
| 69 | |
| 70 if (error !is null) { | |
| 71 text ~= error.toString() ~ "\n"; | |
| 72 } | |
| 73 | |
| 74 text ~= "Stack trace:\n------------------\n"; | |
| 75 char buffer[128]; | |
| 79 | 76 foreach(ref frame; frames) |
| 77 { | |
| 78 with(frame.fileLine) if(line) | |
| 79 { | |
| 70 | 80 auto len = snprintf(buffer.ptr, buffer.length, "%u", line); |
| 81 text ~= file ~ ":" ~ buffer[0 .. len] ~ "\r\n"; | |
| 82 } | |
| 83 } | |
| 84 | |
| 85 text ~= '\0'; | |
| 86 | |
| 87 return text; | |
| 88 } | |
| 89 | |
| 79 | 90 void dump() |
| 91 { | |
| 70 | 92 if (error !is null) { |
| 93 printf("%.*s\n", error.toString()); | |
| 94 } | |
| 95 | |
| 96 printf("Stack trace:\n------------------\n"); | |
| 97 foreach(ref frame; frames) { | |
| 98 with(frame.fileLine) if (line) { | |
| 99 printf("%.*s:%d\r\n", file, line); | |
| 100 } | |
| 101 } | |
| 102 } | |
| 103 | |
| 104 private: | |
| 105 | |
| 106 struct StackFrameInfo { | |
| 107 size_t va; | |
| 108 string moduleName; | |
| 109 SymbolInfo symbol; | |
| 110 FileLineInfo fileLine; | |
| 111 } | |
| 112 | |
| 113 struct DebugImage { | |
| 114 DebugImage* next; | |
| 115 string moduleName; | |
| 116 size_t baseAddress; | |
| 117 uint rvaOffset; | |
| 118 IExecutableImage exeModule; | |
| 119 ISymbolicDebugInfo debugInfo; | |
| 120 } | |
| 121 | |
| 122 void ResolveStackFrames(size_t[] backtrace, StackFrameInfo[] frames) const { | |
| 123 StackFrameInfo* frame = void; | |
| 124 DebugImage* imageList, image = void; | |
| 125 char[255] buffer = void; | |
| 126 uint len = void; | |
| 127 uint rva = void; | |
| 128 | |
| 129 version(Windows) MEMORY_BASIC_INFORMATION mbi = void; | |
| 130 | |
| 131 foreach(i, va; backtrace) { | |
| 132 frame = &frames[i]; | |
| 133 frame.va = va; | |
| 134 | |
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135 version(Windows) { |
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136 // mbi.Allocation base is the handle to stack frame's module |
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137 VirtualQuery(cast(void*)va, &mbi, MEMORY_BASIC_INFORMATION.sizeof); |
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138 if(!mbi.AllocationBase) break; |
| 70 | 139 |
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140 image = imageList; |
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141 while(image) { |
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142 if(image.baseAddress == cast(size_t)mbi.AllocationBase) break; |
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143 image = image.next; |
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144 } |
| 70 | 145 |
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146 if(!image) { |
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147 image = new DebugImage; |
| 70 | 148 |
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149 with(*image) { |
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150 next = imageList; |
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151 imageList = image; |
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152 baseAddress = cast(size_t)mbi.AllocationBase; |
| 70 | 153 |
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154 len = GetModuleFileNameA(cast(HMODULE)baseAddress, buffer.ptr, buffer.length); |
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155 moduleName = buffer[0 .. len].idup; |
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156 if (len != 0) { |
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157 exeModule = new PEImage(moduleName); |
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158 rvaOffset = baseAddress + exeModule.codeOffset; |
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159 debugInfo = exeModule.debugInfo; |
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160 } |
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161 } |
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162 } |
| 70 | 163 } |
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164 else version(POSIX) |
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165 { |
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166 assert(0); |
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167 } |
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168 else static assert(0); |
| 70 | 169 |
| 170 frame.moduleName = image.moduleName; | |
| 171 | |
| 172 if(!image.debugInfo) continue; | |
| 173 | |
| 174 rva = va - image.rvaOffset; | |
| 175 | |
| 176 with(image.debugInfo) { | |
| 177 frame.symbol = ResolveSymbol(rva); | |
| 178 frame.fileLine = ResolveFileLine(rva); | |
| 179 } | |
| 180 } | |
| 181 | |
| 182 while(imageList) { | |
| 183 image = imageList.next; | |
| 184 delete imageList.debugInfo; | |
| 185 delete imageList.exeModule; | |
| 186 delete imageList; | |
| 187 imageList = image; | |
| 188 } | |
| 189 } | |
| 190 } | |
| 191 | |
| 192 void CrashHandlerInit() { | |
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193 version(Windows) { |
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194 //SetErrorMode(SetErrorMode(0) | SEM_FAILCRITICALERRORS); |
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195 SetErrorMode(0); |
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196 SetUnhandledExceptionFilter(&UnhandledExceptionHandler); |
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197 } |
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198 else version(Posix) { |
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199 assert(0); |
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200 /+ sigaction_t sa; |
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201 sa.sa_handler = cast(sighandler_t)&SignalHandler; |
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202 sigemptyset(&sa.sa_mask); |
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203 sa.sa_flags = SA_RESTART | SA_SIGINFO; |
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204 |
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205 sigaction(SIGILL, &sa, null); |
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206 sigaction(SIGFPE, &sa, null); |
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207 sigaction(SIGSEGV, &sa, null);+/ |
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208 } |
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209 else static assert(0); |
| 70 | 210 } |
| 211 enum EXCEPTION_EXECUTE_HANDLER = 1; | |
| 212 | |
| 213 extern(Windows) int UnhandledExceptionHandler(EXCEPTION_POINTERS* e) { | |
| 214 scope CallStackInfo info = new CallStackInfo(e); | |
| 215 info.dump(); | |
| 216 | |
| 217 return EXCEPTION_EXECUTE_HANDLER; | |
| 218 } | |
| 219 | |
| 220 extern (Windows) extern UINT SetErrorMode(UINT); | |
| 221 alias LONG function(EXCEPTION_POINTERS*) PTOP_LEVEL_EXCEPTION_FILTER; | |
| 222 extern (Windows) PTOP_LEVEL_EXCEPTION_FILTER SetUnhandledExceptionFilter(PTOP_LEVEL_EXCEPTION_FILTER); | |
| 223 | |
| 73 | 224 void append(T)(ref T[] array, ref size_t index, T value) |
| 70 | 225 { |
| 226 size_t capacity = array.length; | |
| 227 assert(capacity >= index); | |
| 228 if (capacity == index) { | |
| 229 if (capacity < 8) { | |
| 230 capacity = 8; | |
| 231 } else { | |
| 73 | 232 capacity *= 2; |
| 70 | 233 } |
| 73 | 234 |
| 235 array.length = capacity; | |
| 70 | 236 } |
| 237 | |
| 238 array[index++] = value; | |
| 239 } | |
| 240 | |
| 241 struct EXCEPTION_POINTERS { | |
| 242 EXCEPTION_RECORD* ExceptionRecord; | |
| 243 CONTEXT* ContextRecord; | |
| 244 } | |
| 245 | |
| 246 const MAXIMUM_SUPPORTED_EXTENSION = 512; | |
| 247 | |
| 248 struct CONTEXT { | |
| 249 DWORD ContextFlags; | |
| 250 DWORD Dr0; | |
| 251 DWORD Dr1; | |
| 252 DWORD Dr2; | |
| 253 DWORD Dr3; | |
| 254 DWORD Dr6; | |
| 255 DWORD Dr7; | |
| 256 FLOATING_SAVE_AREA FloatSave; | |
| 257 DWORD SegGs; | |
| 258 DWORD SegFs; | |
| 259 DWORD SegEs; | |
| 260 DWORD SegDs; | |
| 261 DWORD Edi; | |
| 262 DWORD Esi; | |
| 263 DWORD Ebx; | |
| 264 DWORD Edx; | |
| 265 DWORD Ecx; | |
| 266 DWORD Eax; | |
| 267 DWORD Ebp; | |
| 268 DWORD Eip; | |
| 269 DWORD SegCs; | |
| 270 DWORD EFlags; | |
| 271 DWORD Esp; | |
| 272 DWORD SegSs; | |
| 273 BYTE[MAXIMUM_SUPPORTED_EXTENSION] ExtendedRegisters; | |
| 274 } | |
| 275 | |
| 189 | 276 //extern Throwable _d_translate_se_to_d_exception(EXCEPTION_RECORD* exception_record); |