Struct elfio::ArraySectionAccessor

pub struct ArraySectionAccessor<'a> { /* fields omitted */ }

A section data accessor intended to array tables. The accessor is useful for manipulation of such sections as .ctors, .dtors, .init_array and .fini_array

For example:

use std::fs::File;
use std::io;
use std::io::{BufReader, Error};

use elfio::Elfio;

fn main() -> io::Result<()> {
    let elf_file = File::open("tests/files/hello_32")?;
    let mut reader = BufReader::new(elf_file);

    let mut elf = Elfio::new();

    elf.load(&mut reader)?;

    let section = match elf.get_section_by_name(&".ctors") {
        Some(s) => s,
        None => return Err(Error::new(io::ErrorKind::Other, "section not found")),
    };

    let array = elfio::ArraySectionAccessor::new(&elf, section);

    assert_eq!(array.get_entries_num(), 2);

    let element = array.get_entry(0).unwrap();
    assert_eq!(element.value, 0xFFFFFFFF);
    let element = array.get_entry(1).unwrap();
    assert_eq!(element.value, 0x00000000);

    Ok(())
}

Implementations

impl<'a> ArraySectionAccessor<'a>

pub fn new(
    elfio: &'a Elfio,
    section: &'a dyn ElfSectionTrait
) -> ArraySectionAccessor<'a>

Creates a new instance of the relocation table accessor

pub fn get_entries_num(&self) -> ElfXword

Returns number of symbols

pub fn get_entry(&self, index: ElfXword) -> Option<Array>

Get a relocation entry by its index