//! Helper functions to initialize the CPU states on systems bootstrapping.
/// Initializes trap handling on the current CPU.
///
/// In detail, it initializes the GDT, IDT on x86_64 platforms. If the `uspace`
/// feature is enabled, it also initializes relevant model-specific registers to
/// configure the handler for `syscall` instruction.
///
/// # Notes
/// Before calling this function, the platform entry path must have installed
/// and verified the current CPU area. Architecture trap initialization is not
/// a second per-CPU binder.