Function boot_kernel

tests/integration/kernel_integration.rs:123–133

(
    kernel: &AssembledOutput,
    user: Option<&AssembledOutput>,
    fs_image: Option<&[u8]>,
    input: &str,
    max_steps: u64,
)

}

// A hosted user program injected as pid 1 must spawn and exit with code 0.
fn assert_user_exit_ok(uart: &str, outcome: &StepOutcome, label: &str) {
    assert!(
        !uart.contains("PANIC!"),
        "{label}: kernel panicked; uart={uart:?}"
    );
    assert!(
        !uart.contains("unhandled exception"),
        "{label}: unhandled CPU exception; uart={uart:?}"
    );
    assert!(
        uart.contains("[ PROC ] pid 1 ready"),
        "{label}: user process was not spawned; uart={uart:?}"
    );