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Alien

A simple operating system implemented in rust. The purpose is to explore how to use modules to build a complete os, so the system is composed of a series of independent modules. At present, the system already supports user-mode programs and some simple functions.

image-20230815132104606

Project Structure

├── LICENSE
├── Makefile                (编译命令)
├── README.md               (readme)
├── apps                    (rust程序)
├── assert
├── kernel                  (核心子系统)
├── doc                     (开发文档与内核相关模块文档)
├── subsystems							
    ├── arch            (riscv相关代码)
    ├── platform        (平台相关代码)
    ├── config		    (内核配置)
    ├── devices         (设备注册管理)
    ├── drivers         (设备驱动合集)
    ├── unwinder        (内核panic处理)
    ├── vfs             (虚拟文件系统)
    ├── interrupt       (外中断注册管理)
    ├── ipc             (进程间通信模块)
    ├── mem          	(内存管理)
    ├── knet            (网络模块)
    ├── ksync           (内核锁实现)
    ├── timer           (时间相关实现)
    ├── constants		(常量、错误定义)
    ├── device_interface(设备接口定义)
├── tests                   (测试程序)
├── tools                   (一些dts文件)
└── userlibc                (rust lib库)

Run

  1. install qemu 7.0.0(qume版本最低要求7.0.0)
  2. install rust nightly
  3. install riscv64-linux-musl toolchain
    以上内容可以参考简明 ArceOS Tutorial Book
make help
# 一键运行qemu,注意在编译busybox时选择静态链接Settings->Build static binary (no shared libs)
# 忘记设置静态链接可以使用make clean重新配置
make run
# run test
> cd tests
> ./final_test

Run with GUI (QEMU)

make run GUI=y
# 在编译和运行的时候指定参数y
cd tests
slint or sysinfo or todo or printdemo or memorygame 

Update the TFTPBOOT variable in Makefile.

make sdcard
make vf2 VF2=y SMP=2
// 生成testos.bin
// 这里smp=2 表示的是单核启动,对于u74-mc处理器,0号核不会被启动,从1号开始。

GDB

  1. make gdb-server
  2. make gdb-client

Reference