oddcoder
53 lines
1.3 KiB
Rust
53 lines
1.3 KiB
Rust
use alloc::{
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boxed::Box,
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collections::{BTreeMap, BTreeSet},
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string::String,
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vec::Vec,
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};
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#[derive(Default, Debug)]
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pub struct DepTree {
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pub name: String,
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pub deps: Vec<DepTree>,
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}
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impl DepTree {
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pub fn new(name: String) -> DepTree {
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DepTree {
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name,
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deps: Vec::new(),
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}
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}
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}
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/// Use to represnt a library as well as all th symbols that is loaded withen it.
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#[derive(Default)]
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pub struct Library {
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/// Global symbols
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pub globals: BTreeMap<String, usize>,
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/// Weak symbols
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pub weak_syms: BTreeMap<String, usize>,
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/// Loaded library raw data
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pub objects: BTreeMap<String, Box<[u8]>>,
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/// Loaded library in-memory data
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pub mmaps: BTreeMap<String, &'static mut [u8]>,
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/// Each object will have its children called once with no repetition.
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pub dep_tree: DepTree,
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/// A set used to detect circular dependencies in the Linker::load function
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pub cir_dep: BTreeSet<String>,
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}
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impl Library {
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pub fn new() -> Library {
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Default::default()
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}
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pub fn get_sym(&self, name: &str) -> Option<usize> {
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if let Some(value) = self.globals.get(name) {
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Some(*value)
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} else if let Some(value) = self.weak_syms.get(name) {
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Some(*value)
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} else {
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None
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}
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}
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}
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