xv6-rs is a Rust re-implementation of xv6, which is in turn a re-implementation of Dennis Ritchie's and Ken Thompson's Unix Version 6 (v6).
If you spot errors or have suggestions for improvement, please file an issue in the issue tracker. Pull requests are very welcome. If you have suggestions for improvements, please keep in mind that the main purpose of xv6-rs is a Rusty re-implementation of xv6. For example, we are in particular interested in simplifications and clarifications, instead of suggestions for new systems calls, more portability, etc.
To build xv6 on an x86 ELF machine (like Linux or FreeBSD), run "make". On non-x86 or non-ELF machines (like OS X, even on x86), you will need to install a cross-compiler gcc suite capable of producing x86 ELF binaries. See http://pdos.csail.mit.edu/6.828/2016/tools.html. Then run "make TOOLPREFIX=i386-jos-elf-".
You also have to install the Nightly Rust and the relevant tools.
Install rustup and execute rustup override nightly-i686-unknown-linux-gnu in the xv6-rs directory.
To run xv6, install the QEMU PC simulators. To run in QEMU, run "make qemu".