monistode_binutils/object_file/sections/
text.rs

1use super::header::TextSectionHeader;
2use crate::object_file::relocations::Relocation;
3use crate::serializable::SerializationError;
4use crate::symbols::Symbol;
5use bitvec::prelude::*;
6
7#[derive(Debug, Clone)]
8pub struct TextSection {
9    pub data: BitVec,
10    pub symbols: Vec<Symbol>,
11    pub relocations: Vec<Relocation>,
12}
13
14impl TextSection {
15    pub fn new(data: BitVec, symbols: Vec<Symbol>, relocations: Vec<Relocation>) -> Self {
16        TextSection {
17            data,
18            symbols,
19            relocations,
20        }
21    }
22
23    pub fn serialize(&self) -> Vec<u8> {
24        let mut bytes = Vec::new();
25        for i in 0..((self.data.len() + 7) / 8) {
26            let mut byte = 0u8;
27            for j in 0..8 {
28                if i * 8 + j < self.data.len() && self.data[i * 8 + j] {
29                    byte |= 1 << j;
30                }
31            }
32            bytes.push(byte);
33        }
34        bytes
35    }
36
37    pub fn deserialize(
38        header: &TextSectionHeader,
39        data: &[u8],
40        symbols: Vec<Symbol>,
41        relocations: Vec<Relocation>,
42    ) -> Result<(usize, Self), SerializationError> {
43        let required_bytes = (header.bit_length as usize + 7) / 8;
44        if data.len() < required_bytes {
45            return Err(SerializationError::DataTooShort);
46        }
47
48        let mut bits = BitVec::new();
49        for i in 0..header.bit_length as usize {
50            let bit = data[i / 8] & (1 << (i % 8)) != 0;
51            bits.push(bit);
52        }
53        let bytes_read = (header.bit_length + 7) as usize / 8;
54        Ok((
55            bytes_read,
56            TextSection {
57                data: bits,
58                symbols,
59                relocations,
60            },
61        ))
62    }
63}
monistode_binutils/object_file/sections/text.rs

monistode_binutils/object_file/sections/
text.rs
