source: soft/giet_vm/memo/include/libelfpp/elfpp/elfpp_section.hh @ 569

Last change on this file since 569 was 173, checked in by karaoui, 12 years ago

Adding BLOB type for vobj.
Don't forget to set as BLOB type the mapping_info vobj in the xml.

File size: 4.9 KB
Line 
1/*
2    This file is part of Libelfpp.
3
4    Libelfpp is free software: you can redistribute it and/or modify
5    it under the terms of the GNU Lesser General Public License as
6    published by the Free Software Foundation, either version 3 of the
7    License, or (at your option) any later version.
8
9    Libelfpp is distributed in the hope that it will be useful, but
10    WITHOUT ANY WARRANTY; without even the implied warranty of
11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12    General Public License for more details.
13
14    You should have received a copy of the GNU Lesser General Public
15    License along with Libelfpp.  If not, see
16    <http://www.gnu.org/licenses/>.
17
18   Copyright (c) Alexandre Becoulet <alexandre.becoulet@free.fr>
19*/
20
21#ifndef ELFPP_SECTION_HH_
22#define ELFPP_SECTION_HH_
23
24#include <string>
25#include <map>
26#include <stdint.h>
27
28#include "elfpp.hh"
29#include "elfpp_bits.hh"
30
31namespace elfpp
32{
33
34  class object;
35  class section;
36  class symbol;
37  class reloc;
38
39  std::ostream & operator<<(std::ostream &o, const section &v);
40
41  /**
42      @short ELF section class
43      @header elfpp/section
44   */
45  class section : public section_table_t::item_type
46  {
47    template <typename, int> friend class elfn_access;
48    friend std::ostream & operator<<(std::ostream &o, const section &v);
49    friend class symbol;
50    friend class object;
51
52  public:
53    /** @this creates a new section associated with given object */
54    section(object &obj, sh_type_e type);
55
56    ~section();
57
58    /** @this sets section name */
59    inline void set_name(const std::string &name);
60    /** @this gets section name */
61    inline const std::string & get_name() const;
62
63    /** @this gets section type */
64    inline sh_type_e get_type() const;
65
66    /** @this sets section flags */
67    inline void set_flags(sh_flags_e flags);
68    /** @this gets section flags */
69    inline sh_flags_e get_flags() const;
70
71    /** @this sets section address */
72    inline void set_vaddr(uint64_t vaddr);
73    /** @this gets section address */
74    inline uint64_t get_vaddr() const;
75
76    /** @this sets section size, reallocate section content buffer */
77    void set_size(size_t size);
78    /** @this gets section size */
79    inline size_t get_size() const;
80
81    /** @this sets section link to an other section */
82    inline void set_link(section *s);
83    /** @this gets section link */
84    inline section * get_link() const;
85    /** @this gets section with a link to this section, may be unreliable if
86        multiple links exits */
87    inline section * get_back_link() const;
88
89    /** @this sets section info as link to section */
90    inline void set_info(section *s);
91    /** @this gets section info as link to section */
92    inline section * get_info() const;
93    /** @this gets section info as back link to section */
94    inline section * get_back_info() const;
95
96    /** @this sets section info as last local symbol index */
97    inline void set_info_last(unsigned int last);
98    /** @this gets section info as last local symbol index */
99    inline unsigned int get_info_last();
100
101    /** @this sets section alignement */
102    inline void set_align(uint32_t align);
103    /** @this gets section alignement */
104    inline uint32_t get_align() const;
105
106    /** @this sets section entry size */
107    inline void set_entsize(uint32_t entsize);
108    /** @this sets section entry size */
109    inline uint32_t get_entsize() const;
110
111    /** @this sets pointer to section content buffer */
112    void set_content(void* a);
113    /** @this gets pointer to section content buffer */
114    inline uint8_t *get_content() const;
115
116    /** @this gets pointer to container segment if any */
117    segment *get_segment() const;
118
119    /** @this gets associated object */
120    inline object * get_object() const;
121
122    /** @this gets load address from segment info  */
123    uint64_t get_load_address() const;
124
125    inline off_t get_file_offset() const;
126
127    /** @this adds symbol to section */
128    void add_symbol(symbol &sym);
129    /** @this removes symbol from section */
130    void remove_symbol(symbol &sym);
131    /** @this gets symbol by name */
132    inline symbol & get_symbol(const std::string &name);
133    /** @this gets symbol containing given offset */
134    symbol & get_symbol(uint64_t offset);
135    /** @this gets symbol table */
136    inline const sym_tab_map_t & get_symbol_table() const;
137
138   private:
139    inline void set_file_offset(off_t a);
140
141    /** start of flags present in elf section entry */
142    std::string name_;
143    sh_type_e type_;
144    sh_flags_e flags_;
145    uint64_t vaddr_;
146    off_t offset_;
147    size_t size_;
148    section *link_;
149    union {
150      section *info_;
151      unsigned int info_last_;
152    };
153    uint32_t align_;
154    uint32_t entsize_;
155    /** end of flags present in elf section entry */
156
157    // index of section
158    unsigned int index_;
159
160    section *back_info_;        // link to associated relocation table
161    section *back_link_;        // link to associated relocation table
162    object *object_;
163    uint8_t *content_;
164    sym_tab_map_t sym_tab_;
165  };
166
167}
168
169#endif
170
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