fix compilation: insert procedures at front, ltvm: use 0 as default entrypoint

ltvm/src/main.rs

@@ -32,13 +32,21 @@ fn main() {
             std::fs::File::open(source_path).expect("Failed to open file")
         );
 
-        linker.import( source_path, bincode::deserialize_from( input ).expect("") );
+        let obj_file : tisc::linker::ObjectFile = bincode::deserialize_from( input ).expect("");
+
+        for (name, addr) in obj_file.symbols.iter() {
+            symbols.insert(
+                name.clone(),
+                tisc::LinkAddr::Relative{
+                    symbol: source_path.clone(),
+                    offset: *addr
+                }
+            );
+        }     
+        linker.import( source_path, obj_file );
     }
 
     let entry_addr = linker.get_link_addr(&args.entry).unwrap_or(0);
-        /*
-        .expect(&format!("cant find entry symbol '{}'", args.entry));
-        */
     let bytecode = linker.link_total().expect("Link error:");
 
     eprintln!("{} ({} bytes)", "Loaded bytecode.".green(), bytecode.len());