ELFIO/examples/tutorial/tutorial.cpp

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2012-02-18 10:01:36 +00:00
#include <iostream>
#include <elfio/elfio.hpp>
2012-02-18 10:01:36 +00:00
using namespace ELFIO;
int main( int argc, char** argv )
{
if ( argc != 2 ) {
std::cout << "Usage: tutorial <elf_file>" << std::endl;
return 1;
}
// Create an elfio reader
elfio reader;
// Load ELF data
if ( !reader.load( argv[1] ) ) {
std::cout << "Can't find or process ELF file " << argv[1] << std::endl;
return 2;
}
// Print ELF file properties
std::cout << "ELF file class : ";
if ( reader.get_class() == ELFCLASS32 )
std::cout << "ELF32" << std::endl;
else
std::cout << "ELF64" << std::endl;
std::cout << "ELF file encoding : ";
if ( reader.get_encoding() == ELFDATA2LSB )
std::cout << "Little endian" << std::endl;
else
std::cout << "Big endian" << std::endl;
// Print ELF file sections info
Elf_Half sec_num = reader.sections.size();
std::cout << "Number of sections: " << sec_num << std::endl;
for ( int i = 0; i < sec_num; ++i ) {
section* psec = reader.sections[i];
std::cout << " [" << i << "] "
<< psec->get_name()
<< "\t"
<< psec->get_size()
<< std::endl;
// Access to section's data
// const char* p = reader.sections[i]->get_data()
}
// Print ELF file segments info
Elf_Half seg_num = reader.segments.size();
std::cout << "Number of segments: " << seg_num << std::endl;
for ( int i = 0; i < seg_num; ++i ) {
const segment* pseg = reader.segments[i];
std::cout << " [" << i << "] 0x" << std::hex
<< pseg->get_flags()
<< "\t0x"
<< pseg->get_virtual_address()
<< "\t0x"
<< pseg->get_file_size()
<< "\t0x"
<< pseg->get_memory_size()
<< std::endl;
// Access to segments's data
// const char* p = reader.segments[i]->get_data()
}
for ( int i = 0; i < sec_num; ++i ) {
section* psec = reader.sections[i];
// Check section type
if ( psec->get_type() == SHT_SYMTAB ) {
const symbol_section_accessor symbols( reader, psec );
for ( unsigned int j = 0; j < symbols.get_symbols_num(); ++j ) {
std::string name;
Elf64_Addr value;
Elf_Xword size;
unsigned char bind;
unsigned char type;
Elf_Half section_index;
unsigned char other;
// Read symbol properties
symbols.get_symbol( j, name, value, size, bind,
type, section_index, other );
std::cout << j << " " << name << " " << value << std::endl;
}
}
}
return 0;
}