rCore-user

User programs for rCore OS.

Now it has 3 parts:

• ucore: C-lang, from the original ucore_os_lab
• biscuit: C/C++, from Biscuit, based on a musl instead of original litc.
• rust: Simple no_std Rust programs.

Build

To build biscuit programs, install musl toolchain first:

# for ARCH linux
$ sudo pacman -Syu musl # archlinux
# for macOS
$ brew install FileSottile/musl-cross/musl-cross 
# for ubuntu 16.04, we should build gcc-musl for newest musl-1.1.21
# please see build-gcc-musl.md
# for riscv musl toolchain, please install [musl-riscv-toolchain](https://github.com/jiegec/musl-riscv-toolchain)

$ make {ucore,biscuit,rust,nginx,redis,all} arch={x86_64,aarch64,riscv32,riscv64}
$ make sfsimg arch={x86_64,aarch64,riscv32,riscv64}

Output to build/$(arch)

Support matrix

	x86_64	aarch64	riscv32	riscv64
ucore	n	y	y	y
rust	y	y	y	y
biscuit	y	y	n	y
nginx	y	y	n	y
redis	y	y	y	n
busybox	y	y	n	y

Notice

• The syscall ids have been set compatible with Linux64.
• So the ucore part can not run on the original ucore.