Function lldb_with_gdbstub_script

tests/all/guest_debug/mod.rs:128–152

Run an LLDB debug script against a gdbstub endpoint. Connects LLDB to `127.0.0.1: ` using the Wasm plugin, executes the given script commands, and returns LLDB's stdout.

(port: u16, script: &str)

/// Connects LLDB to `127.0.0.1:<port>` using the Wasm plugin,
/// executes the given script commands, and returns LLDB's stdout.
fn lldb_with_gdbstub_script(port: u16, script: &str) -> Result<String> {
    let _ = env_logger::try_init();

    let mut cmd = Command::new(lldb_path());
    cmd.arg("--batch");
    cmd.arg("-o").arg(format!(
        "process connect --plugin wasm connect://127.0.0.1:{port}"
    ));
    for line in script.lines() {
        let line = line.trim();
        if !line.is_empty() {
            cmd.arg("-o").arg(line);
        }
    }

    eprintln!("Running LLDB: {cmd:?}");
    let output = cmd.output()?;

    let stdout = String::from_utf8(output.stdout)?;
    let stderr = String::from_utf8(output.stderr)?;
    eprintln!("--- LLDB stdout ---\n{stdout}");
    eprintln!("--- LLDB stderr ---\n{stderr}");

    Ok(stdout)
}

/// Validate output against FileCheck-style directives.
fn check_output(output: &str, directives: &str) -> Result<()> {