shell: fix script discovery

userspace/tools/shell/src/main.rs

@@ -11,6 +11,7 @@
 use std::{
     fs::File,
     io::{self, stdin, stdout, BufRead, BufReader, Write},
+    path::Path,
     process::ExitCode,
 };
 
@@ -126,10 +127,22 @@ fn run(mut input: ShellInput, env: &Env) -> Result<(), Error> {
     }
 }
 
+fn open_script<P: AsRef<Path>>(arg: P) -> io::Result<File> {
+    #[cfg(any(target_os = "yggdrasil", rust_analyzer))]
+    {
+        let from_auxv = std::os::yggdrasil::real_binary_path();
+        if from_auxv.exists() {
+            return File::open(from_auxv);
+        }
+    }
+
+    File::open(arg)
+}
+
 fn run_wrapper(args: ShellArgs, env: &Env) -> Result<(), Error> {
     match args.script {
         Some(script) => {
-            let script = BufReader::new(File::open(script)?);
+            let script = BufReader::new(open_script(&script)?);
             run(ShellInput::File(script), env)
         }
         None => run(ShellInput::Interactive, env),