Cross Compile on macOS to iOS

• Cross compile for aarch64-apple-ios target.

Cross-compilation

Cross Compile on Linux to iOS

• This is messy, let’s not waste time on this.

Cross Compile on Procursus Bootstrap

• Port the rust program to Procursus SDK and cross compile it using that.

Procursus/lsd.control at main · ProcursusTeam/Procursus

Procursus/lsd.mk at main · ProcursusTeam/Procursus

Compiling on iOS

• Install cargo from Procursus apt repository.

• Set TMPDIR to somewhere not /var or /tmp, e.g. TMPDIR=/compiling/tmprust

• Some packages have weird errors on iOS

  # root @ arinc9-iPhone in ~ [18:03:49]
  $ cargo install boringtun
      Updating crates.io index
    Installing boringtun v0.4.0
    Downloaded num_threads v0.1.5
    Downloaded once_cell v1.10.0
    Downloaded tracing-core v0.1.26
    Downloaded tracing-subscriber v0.3.11
    Downloaded cc v1.0.73
    Downloaded parking_lot_core v0.9.2
    Downloaded tracing-attributes v0.1.20
    Downloaded tracing v0.1.34
    Downloaded crossbeam-channel v0.5.4
    Downloaded time v0.3.9
  error: failed to compile `boringtun v0.4.0`, intermediate artifacts can be found at `/tmp/cargo-installNbk55u`
  
  Caused by:
    failed to parse manifest at `/var/root/.cargo/registry/src/github.com-1ecc6299db9ec823/time-0.3.9/Cargo.toml`
  
  Caused by:
    feature `resolver` is required
  
    consider adding `cargo-features = ["resolver"]` to the manifest