Enum tartan_arch::aarch64::StackPointerSelect

pub enum StackPointerSelect {
    Level0,
    CurrentLevel,
}

Available on AArch64 only.

Controls which stack pointer register is used when executing code at EL1 or higher.

Variants

Level0

T (thread) mode: use the stack pointer register from EL0.

CurrentLevel

H (handler) mode: use the stack pointer register for the current exception level.

Implementations

impl StackPointerSelect

pub fn get() -> Self

Get the value of the flag for the current exception level. Only accessible from EL1 or higher.

pub unsafe fn set(value: Self)

Update the value of the flag for the current exception level.

Safety

This can alter the current stack pointer, which can have dramatic effects on the execution of the current function.