[libcxx-commits] [libcxx] [runtimes] Add a qemu-system executor script (PR #68643)

[Michael Platings via libcxx-commits]

mplatings wrote:

I'd prefer to land https://reviews.llvm.org/D154246 and https://reviews.llvm.org/D155521 as-is since they're well tested. I'm not sure whether this will work in all circumstances since it doesn't support the full interface of `run.py`, and this change can't be exercised by CI.

https://github.com/llvm/llvm-project/pull/68643