error: linking with `rust-lld` failed: exit status: 1
  |
  = note: LC_ALL="C" PATH="/Users/bitts/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/aarch64-apple-darwin/bin:/Users/bitts/google-cloud-sdk/bin:/opt/homebrew/bin:/opt/homebrew/sbin:/Applications/ArmGNUToolchain/13.2.rel1/arm-none-eabi/bin:/usr/local/bin:/System/Cryptexes/App/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/local/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/appleinternal/bin:/Library/Apple/usr/bin:/Users/bitts/google-cloud-sdk/bin:/Users/bitts/.cargo/bin:/Users/bitts/bin:/Users/bitts/.pub-cache/bin:/Users/bitts/.pub-cache/bin" VSLANG="1033" "rust-lld" "-flavor" "gnu" "--fix-cortex-a53-843419" "/var/folders/60/w_v5hjbx0j3f7985g0vm437r0000gp/T/rustcNYm1fD/symbols.o" "/Users/bitts/Documents/Projects/am62_rust_hello_world/am62_rust_hello_world/target/aarch64-unknown-none/release/deps/kernel-8f6b887bc5e88acf.kernel.2f8ad0d8467a05c8-cgu.0.rcgu.o" "--as-needed" "-Bstatic" "/Users/bitts/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/aarch64-unknown-none/lib/libcompiler_builtins-6135238bf3e4d955.rlib" "-Bdynamic" "--eh-frame-hdr" "-z" "noexecstack" "-o" "/Users/bitts/Documents/Projects/am62_rust_hello_world/am62_rust_hello_world/target/aarch64-unknown-none/release/deps/kernel-8f6b887bc5e88acf" "--gc-sections" "-O1" "--strip-debug" "--library-path=/Users/bitts/Documents/Projects/am62_rust_hello_world/am62_rust_hello_world/src/bsp/raspberrypi" "--script=kernel.ld"
  = note: rust-lld: error: undefined symbol: Armv8_getCoreId
          >>> referenced by lowlevel.rs:12 (/Users/bitts/Documents/Projects/am62x_hal/src/mmu/lowlevel.rs:12)
          >>>               /Users/bitts/Documents/Projects/am62_rust_hello_world/am62_rust_hello_world/target/aarch64-unknown-none/release/deps/kernel-8f6b887bc5e88acf.kernel.2f8ad0d8467a05c8-cgu.0.rcgu.o:(kernel::kernel_main::h8ec6c922cc5a29fa)
          

error: could not compile `mingo` (bin "kernel") due to 1 previous error
make: *** [target/aarch64-unknown-none/release/kernel] Error 101