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Issue 67197: Start addressing massive arrays on the stack. There is hardly ever... (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: '' Created 11 years, 8 months ago
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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. 1 // Copyright 2006-2008 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
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1154 } 1154 }
1155 1155
1156 1156
1157 // Walk the stack using the facilities in dbghelp.dll and tlhelp32.dll 1157 // Walk the stack using the facilities in dbghelp.dll and tlhelp32.dll
1158 1158
1159 // Switch off warning 4748 (/GS can not protect parameters and local variables 1159 // Switch off warning 4748 (/GS can not protect parameters and local variables
1160 // from local buffer overrun because optimizations are disabled in function) as 1160 // from local buffer overrun because optimizations are disabled in function) as
1161 // it is triggered by the use of inline assembler. 1161 // it is triggered by the use of inline assembler.
1162 #pragma warning(push) 1162 #pragma warning(push)
1163 #pragma warning(disable : 4748) 1163 #pragma warning(disable : 4748)
1164 int OS::StackWalk(OS::StackFrame* frames, int frames_size) { 1164 int OS::StackWalk(Vector<OS::StackFrame> frames) {
1165 BOOL ok; 1165 BOOL ok;
1166 1166
1167 // Load the required functions from DLL's. 1167 // Load the required functions from DLL's.
1168 if (!LoadDbgHelpAndTlHelp32()) return kStackWalkError; 1168 if (!LoadDbgHelpAndTlHelp32()) return kStackWalkError;
1169 1169
1170 // Get the process and thread handles. 1170 // Get the process and thread handles.
1171 HANDLE process_handle = GetCurrentProcess(); 1171 HANDLE process_handle = GetCurrentProcess();
1172 HANDLE thread_handle = GetCurrentThread(); 1172 HANDLE thread_handle = GetCurrentThread();
1173 1173
1174 // Read the symbols. 1174 // Read the symbols.
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1194 memset(&stack_frame, 0, sizeof(stack_frame)); 1194 memset(&stack_frame, 0, sizeof(stack_frame));
1195 stack_frame.AddrPC.Offset = context.Eip; 1195 stack_frame.AddrPC.Offset = context.Eip;
1196 stack_frame.AddrPC.Mode = AddrModeFlat; 1196 stack_frame.AddrPC.Mode = AddrModeFlat;
1197 stack_frame.AddrFrame.Offset = context.Ebp; 1197 stack_frame.AddrFrame.Offset = context.Ebp;
1198 stack_frame.AddrFrame.Mode = AddrModeFlat; 1198 stack_frame.AddrFrame.Mode = AddrModeFlat;
1199 stack_frame.AddrStack.Offset = context.Esp; 1199 stack_frame.AddrStack.Offset = context.Esp;
1200 stack_frame.AddrStack.Mode = AddrModeFlat; 1200 stack_frame.AddrStack.Mode = AddrModeFlat;
1201 int frames_count = 0; 1201 int frames_count = 0;
1202 1202
1203 // Collect stack frames. 1203 // Collect stack frames.
1204 int frames_size = frames.length();
1204 while (frames_count < frames_size) { 1205 while (frames_count < frames_size) {
1205 ok = _StackWalk64( 1206 ok = _StackWalk64(
1206 IMAGE_FILE_MACHINE_I386, // MachineType 1207 IMAGE_FILE_MACHINE_I386, // MachineType
1207 process_handle, // hProcess 1208 process_handle, // hProcess
1208 thread_handle, // hThread 1209 thread_handle, // hThread
1209 &stack_frame, // StackFrame 1210 &stack_frame, // StackFrame
1210 &context, // ContextRecord 1211 &context, // ContextRecord
1211 NULL, // ReadMemoryRoutine 1212 NULL, // ReadMemoryRoutine
1212 _SymFunctionTableAccess64, // FunctionTableAccessRoutine 1213 _SymFunctionTableAccess64, // FunctionTableAccessRoutine
1213 _SymGetModuleBase64, // GetModuleBaseRoutine 1214 _SymGetModuleBase64, // GetModuleBaseRoutine
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1277 1278
1278 // Return the number of frames filled in. 1279 // Return the number of frames filled in.
1279 return frames_count; 1280 return frames_count;
1280 } 1281 }
1281 1282
1282 // Restore warnings to previous settings. 1283 // Restore warnings to previous settings.
1283 #pragma warning(pop) 1284 #pragma warning(pop)
1284 1285
1285 #else // __MINGW32__ 1286 #else // __MINGW32__
1286 void OS::LogSharedLibraryAddresses() { } 1287 void OS::LogSharedLibraryAddresses() { }
1287 int OS::StackWalk(OS::StackFrame* frames, int frames_size) { return 0; } 1288 int OS::StackWalk(Vector<OS::StackFrame> frames) { return 0; }
1288 #endif // __MINGW32__ 1289 #endif // __MINGW32__
1289 1290
1290 1291
1291 double OS::nan_value() { 1292 double OS::nan_value() {
1292 #ifdef _MSC_VER 1293 #ifdef _MSC_VER
1293 static const __int64 nanval = 0xfff8000000000000; 1294 static const __int64 nanval = 0xfff8000000000000;
1294 return *reinterpret_cast<const double*>(&nanval); 1295 return *reinterpret_cast<const double*>(&nanval);
1295 #else // _MSC_VER 1296 #else // _MSC_VER
1296 return NAN; 1297 return NAN;
1297 #endif // _MSC_VER 1298 #endif // _MSC_VER
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1855 1856
1856 // Release the thread handles 1857 // Release the thread handles
1857 CloseHandle(data_->sampler_thread_); 1858 CloseHandle(data_->sampler_thread_);
1858 CloseHandle(data_->profiled_thread_); 1859 CloseHandle(data_->profiled_thread_);
1859 } 1860 }
1860 1861
1861 1862
1862 #endif // ENABLE_LOGGING_AND_PROFILING 1863 #endif // ENABLE_LOGGING_AND_PROFILING
1863 1864
1864 } } // namespace v8::internal 1865 } } // namespace v8::internal
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