aarch64-rt

The aarch64-rt crate provides the assembly entry point and exception vector that we implemented before. We just need to mark our main function with the entry! macro.

It also provides the initial_pagetable! macro to let us define an initial static pagetable in Rust, rather than in assembly code like we did before.

We can also use the UART driver from the arm-pl011-uart crate rather than writing our own.

rust,editable,compile_fail

# // Copyright 2025 Google LLC
# // SPDX-License-Identifier: Apache-2.0
#
{{#include examples/src/main_rt.rs:main}}

Run the example in QEMU with make qemu_rt under src/bare-metal/aps/examples.

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