3 // Copyright (C) 2009 Free Software Foundation, Inc.
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the terms
7 // of the GNU General Public License as published by the Free Software
8 // Foundation; either version 2, or (at your option) any later
11 // This library is distributed in the hope that it will be useful, but
12 // WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // General Public License for more details.
16 // You should have received a copy of the GNU General Public License
17 // along with this library; see the file COPYING. If not, write to
18 // the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
19 // MA 02111-1307, USA.
21 // As a special exception, you may use this file as part of a free
22 // software library without restriction. Specifically, if other files
23 // instantiate templates or use macros or inline functions from this
24 // file, or you compile this file and link it with other files to
25 // produce an executable, this file does not by itself cause the
26 // resulting executable to be covered by the GNU General Public
27 // License. This exception does not however invalidate any other
28 // reasons why the executable file might be covered by the GNU General
31 /** @file profile/impl/profiler_node.h
32 * @brief Data structures to represent a single profiling event.
35 // Written by Lixia Liu and Silvius Rus.
37 #ifndef _GLIBCXX_PROFILE_PROFILER_NODE_H
38 #define _GLIBCXX_PROFILE_PROFILER_NODE_H 1
40 #ifdef __GXX_EXPERIMENTAL_CXX0X__
50 #if defined HAVE_EXECINFO_H
54 namespace __gnu_profile
56 typedef const void* __object_t;
57 typedef void* __instruction_address_t;
58 typedef std::_GLIBCXX_STD_PR::vector<__instruction_address_t> __stack_npt;
59 typedef __stack_npt* __stack_t;
61 size_t __stack_max_depth();
63 inline __stack_t __get_stack()
65 #if defined HAVE_EXECINFO_H
66 size_t __max_depth = __stack_max_depth();
69 __stack_npt __buffer(__max_depth);
70 int __depth = backtrace(&__buffer[0], __max_depth);
71 __stack_t __stack = new __stack_npt(__depth);
72 memcpy(&(*__stack)[0], &__buffer[0], __depth * sizeof(__object_t));
79 inline __size(const __stack_t& __stack)
84 return __stack->size();
87 inline void __write(FILE* __f, const __stack_t __stack)
92 __stack_npt::const_iterator __it;
93 for (__it = __stack->begin(); __it != __stack->end(); ++__it)
94 fprintf(__f, "%p ", *__it);
97 /** @brief Hash function for summary trace using call stack as index. */
101 size_t operator()(const __stack_t __s) const
106 uintptr_t __index = 0;
107 __stack_npt::const_iterator __it;
108 for (__it = __s->begin(); __it != __s->end(); ++__it)
110 __index += reinterpret_cast<uintptr_t>(*__it);
115 bool operator() (const __stack_t __stack1, const __stack_t __stack2) const
117 if (!__stack1 && !__stack2) return true;
118 if (!__stack1 || !__stack2) return false;
119 if (__stack1->size() != __stack2->size()) return false;
121 size_t __byte_size = __stack1->size() * sizeof(__stack_npt::value_type);
122 return memcmp(&(*__stack1)[0], &(*__stack2)[0], __byte_size) == 0;
126 /** @brief Base class for a line in the object table. */
127 class __object_info_base
130 __object_info_base() { }
131 __object_info_base(__stack_t __stack);
132 __object_info_base(const __object_info_base& o);
133 virtual ~__object_info_base() { }
134 bool __is_valid() const { return _M_valid; }
135 __stack_t __stack() const { return _M_stack; }
136 virtual void __write(FILE* f) const = 0;
143 inline __object_info_base::__object_info_base(__stack_t __stack)
149 inline __object_info_base::__object_info_base(const __object_info_base& __o)
151 _M_stack = __o._M_stack;
152 _M_valid = __o._M_valid;
155 /** @brief Base class for a line in the stack table. */
156 template<typename __object_info>
157 class __stack_info_base
160 __stack_info_base() { }
161 __stack_info_base(const __object_info& __info) = 0;
162 virtual ~__stack_info_base() { }
163 void __merge(const __object_info& __info) = 0;
164 virtual float __magnitude() const = 0;
165 virtual const char* __get_id() const = 0;
167 } // namespace __gnu_profile
168 #endif /* _GLIBCXX_PROFILE_PROFILER_NODE_H */