Rust on Xv6-RISC-V

How to run user Rust program in Xv6-RISC-V

• Run make init to add rist-v target to rustc

• Run make build to build the program.

  It will generate a _rusty binary, statically linked with the Xv6-RISC-V user lib.

• Move _rusty binary to the $(XV6_PATH)/user directory.

• Run mkfs/mkfs fs.img README user/xargstest.sh user/_cat ... user/_rusty where ... is filled with all user programs.

• Run qemu-system-riscv64 -machine virt -bios none -kernel kernel/kernel -m 128M -smp 3 -nographic -drive file=fs.img,if=none,format=raw,id=x0 -device virtio-blk-device,drive=x0,bus=virtio-mmio-bus.0 to start QEMU emulator that runs Xv6 kernel.