zekesonxx / steamlink-sdk-rs-maybe

Basic proof of concept running Rust code on the Steam Link

steamlink-sdk-rs-maybe

A basic proof of concept getting Rust code to run on the Steam Link.

Tested on Rust 1.22 nightly. Requires rustc nightly and Xargo.

Haven't tried interfacing with OpenGL ES/SDL/Qt yet.

Basic steps

1. Clone both this repo and steamlink-sdk
2. If #109 isn't merged yet, go into $steamlink-sdk/rootfs/lib and run ln -s libgcc_s.so.1 libgcc_s.so.
3. source $steamlink-sdk/setenv.sh to setup the Steam Link SDK environment variables
4. source ./fix-setenv.sh to fix the $CC environment variable, needed for things to compile correctly.
5. Run ./gen-target.sh to generate the target file. The generated file will have a path to the Steam Link SDK hardcoded in it.
6. Run xargo build --target armv7a-cros-linux-gnueabi to build
7. Your binary will show up in target/armv7a-cros-linux-gnueabi/debug/.

Demo

$ rustc -V
rustc 1.22.0-nightly (8493813cd 2017-10-22)
$ xargo build --target armv7a-cros-linux-gnueabi
   Compiling steamlink-sdk-rs-maybe v0.1.0 (file:///home/zekesonxx/bullshit/steamlink-sdk-rs-maybe)
    Finished dev [unoptimized + debuginfo] target(s) in 0.44 secs
$ scp target/armv7a-cros-linux-gnueabi/debug/steamlink-sdk-rs-maybe steamlink:
steamlink-sdk-rs-maybe    100% 2258KB   2.2MB/s   00:01    
$ ssh steamlink
/home/steam
# ./steamlink-sdk-rs-maybe
Hello World!

Notes

• Valve somehow thinks it's okay to put flags in $CC (this is what fix-setenv.sh fixes)
• The LLVM triple is specified in the target file as armv7a-cros-linux-gnueabihf rather than -gnueabi since it is hard-float, and this makes LLVM compile things properly.
• panic = "abort" only for right now. Not sure how to get unwrap working yet.

License

Public domain / CC0.