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# rCore-user
[![Build Status](https://travis-ci.org/wangrunji0408/rcore_user.svg?branch=master)](https://travis-ci.org/wangrunji0408/rcore_user)
User programs for [rCore OS](https://github.com/wangrunji0408/RustOS).
Now it has 3 parts:
* `ucore`: C-lang, from the original [ucore_os_lab](https://github.com/chyyuu/ucore_os_plus)
* `biscuit`: C/C++, from [Biscuit](https://github.com/mit-pdos/biscuit), based on a `musl` instead of original `litc`.
* `rust`: Simple no_std Rust programs.
## Build
To build biscuit programs, install musl toolchain first:
```bash
# 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)
```
```bash
$ 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 (build with redis=on) | y | y | y | n |
| busybox | y | y | n | y |
## Notice
* The syscall ids have been set compatible with [Linux64](https://syscalls64.paolostivanin.com).
* So the ucore part can not run on the original ucore.