1 // This file is part of the ustl library, an STL implementation. 2 // 3 // Copyright (C) 2006 by Mike Sharov <msharov (at) users.sourceforge.net> 4 // This file is free software, distributed under the MIT License. 5 // 6 // bktrace.h 7 // 8 9 #ifndef BKTRACE_H_63ABB1E4388CEDD975DBE58B57DE474F 10 #define BKTRACE_H_63ABB1E4388CEDD975DBE58B57DE474F 11 12 #include "ulimits.h" 13 14 namespace ustl { 15 16 class ostringstream; 17 class istream; 18 class ostream; 19 20 /// \class CBacktrace bktrace.h ustl.h 21 /// 22 /// \brief Stores the backtrace from the point of construction. 23 /// 24 /// The backtrace, or callstack, is the listing of functions called to 25 /// reach the construction of this object. This is useful for debugging, 26 /// to print the location of an error. To get meaningful output you'll 27 /// need to use a debug build with symbols and with frame pointers. For 28 /// GNU ld you will also need to link with the -rdynamic option to see 29 /// actual function names instead of __gxx_personality0+0xF4800. 30 /// 31 class CBacktrace { 32 public: 33 CBacktrace (void); 34 CBacktrace (const CBacktrace& v); 35 ~CBacktrace (void); 36 const CBacktrace& operator= (const CBacktrace& v); 37 void text_write (ostringstream& os) const; 38 void read (istream& is); 39 void write (ostream& os) const; 40 size_t stream_size (void) const; 41 private: 42 void GetSymbols (void); 43 private: 44 void* m_Addresses [64]; ///< Addresses of each function on the stack. 45 char* m_Symbols; ///< Symbols corresponding to each address. 46 uint32_t m_nFrames; ///< Number of addresses in m_Addresses. 47 uint32_t m_SymbolsSize; ///< Size of m_Symbols. 48 }; 49 50 } // namespace ustl 51 52 ALIGNOF(ustl::CBacktrace, sizeof(void*)) 53 54 #endif 55 56
