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[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc3/] [libstdc++-v3/] [include/] [profile/] [impl/] [profiler_node.h] - Rev 516
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// -*- C++ -*- // // Copyright (C) 2009 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the terms // of the GNU General Public License as published by the Free Software // Foundation; either version 2, or (at your option) any later // version. // This library is distributed in the hope that it will be useful, but // WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // General Public License for more details. // You should have received a copy of the GNU General Public License // along with this library; see the file COPYING. If not, write to // the Free Software Foundation, 59 Temple Place - Suite 330, Boston, // MA 02111-1307, USA. // As a special exception, you may use this file as part of a free // software library without restriction. Specifically, if other files // instantiate templates or use macros or inline functions from this // file, or you compile this file and link it with other files to // produce an executable, this file does not by itself cause the // resulting executable to be covered by the GNU General Public // License. This exception does not however invalidate any other // reasons why the executable file might be covered by the GNU General // Public License. /** @file profile/impl/profiler_node.h * @brief Data structures to represent a single profiling event. */ // Written by Lixia Liu and Silvius Rus. #ifndef _GLIBCXX_PROFILE_PROFILER_NODE_H #define _GLIBCXX_PROFILE_PROFILER_NODE_H 1 #ifdef __GXX_EXPERIMENTAL_CXX0X__ #include <cstdio> #include <cstdint> #include <cstring> #else #include <stdio.h> #include <stdint.h> #include <string.h> #endif #include <vector> #if defined _GLIBCXX_HAVE_EXECINFO_H #include <execinfo.h> #endif namespace __gnu_profile { typedef const void* __object_t; typedef void* __instruction_address_t; typedef std::_GLIBCXX_STD_PR::vector<__instruction_address_t> __stack_npt; typedef __stack_npt* __stack_t; size_t __stack_max_depth(); inline __stack_t __get_stack() { #if defined _GLIBCXX_HAVE_EXECINFO_H size_t __max_depth = __stack_max_depth(); if (__max_depth == 0) return NULL; __stack_npt __buffer(__max_depth); int __depth = backtrace(&__buffer[0], __max_depth); __stack_t __stack = new __stack_npt(__depth); memcpy(&(*__stack)[0], &__buffer[0], __depth * sizeof(__object_t)); return __stack; #else return NULL; #endif } inline __size(const __stack_t& __stack) { if (!__stack) { return 0; } else { return __stack->size(); } } inline void __write(FILE* __f, const __stack_t __stack) { if (!__stack) { return; } __stack_npt::const_iterator __it; for (__it = __stack->begin(); __it != __stack->end(); ++__it) { fprintf(__f, "%p ", *__it); } } /** @brief Hash function for summary trace using call stack as index. */ class __stack_hash { public: size_t operator()(const __stack_t __s) const { if (!__s) { return 0; } uintptr_t __index = 0; __stack_npt::const_iterator __it; for (__it = __s->begin(); __it != __s->end(); ++__it) { __index += reinterpret_cast<uintptr_t>(*__it); } return __index; } bool operator() (const __stack_t __stack1, const __stack_t __stack2) const { if (!__stack1 && !__stack2) return true; if (!__stack1 || !__stack2) return false; if (__stack1->size() != __stack2->size()) return false; size_t __byte_size = __stack1->size() * sizeof(__stack_npt::value_type); return memcmp(&(*__stack1)[0], &(*__stack2)[0], __byte_size) == 0; } }; /** @brief Base class for a line in the object table. */ class __object_info_base { public: __object_info_base() {} __object_info_base(__stack_t __stack); __object_info_base(const __object_info_base& o); virtual ~__object_info_base() {} bool __is_valid() const { return _M_valid; } __stack_t __stack() const { return _M_stack; } virtual void __write(FILE* f) const = 0; protected: __stack_t _M_stack; bool _M_valid; }; inline __object_info_base::__object_info_base(__stack_t __stack) { _M_stack = __stack; _M_valid = true; } inline __object_info_base::__object_info_base(const __object_info_base& __o) { _M_stack = __o._M_stack; _M_valid = __o._M_valid; } /** @brief Base class for a line in the stack table. */ template<typename __object_info> class __stack_info_base { public: __stack_info_base() {} __stack_info_base(const __object_info& __info) = 0; virtual ~__stack_info_base() {} void __merge(const __object_info& __info) = 0; virtual float __magnitude() const = 0; virtual const char* __get_id() const = 0; }; } // namespace __gnu_profile #endif /* _GLIBCXX_PROFILE_PROFILER_NODE_H */