object::read

Module elf

Source
Expand description

Support for reading ELF files.

Traits are used to abstract over the difference between 32-bit and 64-bit ELF. The primary trait for this is FileHeader.

§High level API

ElfFile implements the Object trait for ELF files. ElfFile is parameterised by FileHeader to allow reading both 32-bit and 64-bit ELF. There are type aliases for these parameters (ElfFile32 and ElfFile64).

§Low level API

The FileHeader trait can be directly used to parse both elf::FileHeader32 and elf::FileHeader64.

§Example for low level API

use object::elf;
use object::read::elf::{FileHeader, Sym};
use std::error::Error;
use std::fs;

/// Reads a file and displays the name of each symbol.
fn main() -> Result<(), Box<dyn Error>> {
   let data = fs::read("path/to/binary")?;
   let elf = elf::FileHeader64::<object::Endianness>::parse(&*data)?;
   let endian = elf.endian()?;
   let sections = elf.sections(endian, &*data)?;
   let symbols = sections.symbols(endian, &*data, elf::SHT_SYMTAB)?;
   for symbol in symbols.iter() {
       let name = symbol.name(endian, symbols.strings())?;
       println!("{}", String::from_utf8_lossy(name));
   }
   Ok(())
}

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