Switch to LinkedHashMap

Cargo.lock

@@ -402,6 +402,12 @@ dependencies = [
  "cc",
 ]
 
+[[package]]
+name = "linked-hash-map"
+version = "0.5.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0717cef1bc8b636c6e1c1bbdefc09e6322da8a9321966e8928ef80d20f7f770f"
+
 [[package]]
 name = "linux-raw-sys"
 version = "0.0.46"
@@ -437,6 +443,7 @@ dependencies = [
  "human-repr",
  "inventory",
  "itertools",
+ "linked-hash-map",
  "nullable-result",
  "parse_int",
  "paste",

Cargo.toml

@@ -12,6 +12,7 @@ elf = "0.1.0"
 human-repr = { version = "1.0.1", features = ["iec", "space"] }
 inventory = "0.3.1"
 itertools = "0.10.5"
+linked-hash-map = "0.5.6"
 nullable-result = { version = "0.7.0", features=["try_trait"] }
 parse_int = "0.6.0"
 paste = "1.0.9"

src/main.rs

@@ -22,6 +22,7 @@ use crate::{
 use disas::DisassemblyError;
 use elf::gabi::{STT_FILE, STT_SECTION};
 use itertools::Itertools;
+use linked_hash_map::LinkedHashMap;
 use parse_int::parse;
 use reedline_repl_rs::{
     clap::{Arg, ArgAction, Command},
@@ -38,7 +39,7 @@ use std::{
     process,
 };
 
-pub type SymbolTables = HashMap<String, HashMap<String, Symbol>>;
+pub type SymbolTables = LinkedHashMap<String, HashMap<String, Symbol>>;
 
 #[derive(Copy, Clone, Debug)]
 enum PeekFormat {
@@ -153,7 +154,7 @@ fn main() -> Result<(), ReplError> {
             Err(e) => panic!("{}", e),
         };
     }
-    let mut symbol_tables = HashMap::new();
+    let mut symbol_tables = LinkedHashMap::new();
     if let Some(initial_tables) = config.symbol_tables {
         for path in initial_tables {
             let table_name = Path::new(&path).file_name().unwrap().to_str().unwrap();