242406b2b4
That's the only mention of `aarch64` in a context of cpus: https://github.com/search?q=repo%3Adart-lang%2Fsdk%20path%3A*.gn*%20aarch64&type=code. Similar to https://dart-review.googlesource.com/c/sdk/+/395300, I believe it works correctly now only by accident, because `current_cpu` defaults to `target_cpu`, and `toolchain_cpu` is unused. However when using mulitple toolchains, `current_cpu` is set to `toolchain_cpu`, and config evaluation fails at https://github.com/dart-lang/sdk/blob/246050a1ef6233d9574ce6a30d30506e004fef3d/build/config/android/config.gni#L107 Change-Id: Ic3b3ab4afecf00556f0420800f058ebe4c64fa70 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/396260 Auto-Submit: Ivan Inozemtsev <iinozemtsev@google.com> Commit-Queue: Ryan Macnak <rmacnak@google.com> Reviewed-by: Ryan Macnak <rmacnak@google.com>
This directory was taken from a snapshot of flutter/engine/src/build/.
The snapshot was taken with a recursive copy cp -R of the directory from
the flutter repository.
The contents has now diverged significantly from Flutter, and is maintained independently by the Dart team. It is used to support the GN build system.