1/*
2Copyright (C) 2001-present by Serge Lamikhov-Center
3
4Permission is hereby granted, free of charge, to any person obtaining a copy
5of this software and associated documentation files (the "Software"), to deal
6in the Software without restriction, including without limitation the rights
7to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8copies of the Software, and to permit persons to whom the Software is
9furnished to do so, subject to the following conditions:
10
11The above copyright notice and this permission notice shall be included in
12all copies or substantial portions of the Software.
13
14THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
20THE SOFTWARE.
21*/
22
23#include <iostream>
24#include <elfio/elfio.hpp>
25
26using namespace ELFIO;
27
28int main( int argc, char** argv )
29{
30    if ( argc != 2 ) {
31        std::cout << "Usage: tutorial <elf_file>" << std::endl;
32        return 1;
33    }
34
35    // Create an elfio reader
36    elfio reader;
37
38    // Load ELF data
39    if ( !reader.load( argv[1] ) ) {
40        std::cout << "Can't find or process ELF file " << argv[1] << std::endl;
41        return 2;
42    }
43
44    // Print ELF file properties
45    std::cout << "ELF file class    : ";
46    if ( reader.get_class() == ELFCLASS32 )
47        std::cout << "ELF32" << std::endl;
48    else
49        std::cout << "ELF64" << std::endl;
50
51    std::cout << "ELF file encoding : ";
52    if ( reader.get_encoding() == ELFDATA2LSB )
53        std::cout << "Little endian" << std::endl;
54    else
55        std::cout << "Big endian" << std::endl;
56
57    // Print ELF file sections info
58    Elf_Half sec_num = reader.sections.size();
59    std::cout << "Number of sections: " << sec_num << std::endl;
60    for ( int i = 0; i < sec_num; ++i ) {
61        section* psec = reader.sections[i];
62        std::cout << "  [" << i << "] " << psec->get_name() << "\t"
63                  << psec->get_size() << std::endl;
64        // Access to section's data
65        // const char* p = reader.sections[i]->get_data()
66    }
67
68    // Print ELF file segments info
69    Elf_Half seg_num = reader.segments.size();
70    std::cout << "Number of segments: " << seg_num << std::endl;
71    for ( int i = 0; i < seg_num; ++i ) {
72        const segment* pseg = reader.segments[i];
73        std::cout << "  [" << i << "] 0x" << std::hex << pseg->get_flags()
74                  << "\t0x" << pseg->get_virtual_address() << "\t0x"
75                  << pseg->get_file_size() << "\t0x" << pseg->get_memory_size()
76                  << std::endl;
77        // Access to segments's data
78        // const char* p = reader.segments[i]->get_data()
79    }
80
81    for ( int i = 0; i < sec_num; ++i ) {
82        section* psec = reader.sections[i];
83        // Check section type
84        if ( psec->get_type() == SHT_SYMTAB ) {
85            const symbol_section_accessor symbols( reader, psec );
86            for ( unsigned int j = 0; j < symbols.get_symbols_num(); ++j ) {
87                std::string   name;
88                Elf64_Addr    value;
89                Elf_Xword     size;
90                unsigned char bind;
91                unsigned char type;
92                Elf_Half      section_index;
93                unsigned char other;
94
95                // Read symbol properties
96                symbols.get_symbol( j, name, value, size, bind, type,
97                                    section_index, other );
98                std::cout << j << " " << name << " " << value << std::endl;
99            }
100        }
101    }
102
103    return 0;
104}
105