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https://github.com/arceos-org/arceos
An experimental modular OS written in Rust.
https://github.com/arceos-org/arceos
modlar operating-system os-components osdev rust unikernel
Last synced: about 2 months ago
JSON representation
An experimental modular OS written in Rust.
- Host: GitHub
- URL: https://github.com/arceos-org/arceos
- Owner: arceos-org
- License: apache-2.0
- Fork: true (arceos-org/arceos)
- Created: 2023-04-27T19:41:57.000Z (over 1 year ago)
- Default Branch: main
- Last Pushed: 2024-07-19T06:01:54.000Z (2 months ago)
- Last Synced: 2024-07-31T20:07:01.965Z (about 2 months ago)
- Topics: modlar, operating-system, os-components, osdev, rust, unikernel
- Language: Rust
- Homepage: http://arceos-org.github.io/arceos/
- Size: 3.77 MB
- Stars: 13
- Watchers: 2
- Forks: 27
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- License: LICENSE.Apache2
Awesome Lists containing this project
- StarryDivineSky - arceos-org/arceos
README
# ArceOS
[](https://github.com/arceos-org/arceos/actions/workflows/build.yml)
[](https://github.com/arceos-org/arceos/actions/workflows/test.yml)
[](https://arceos-org.github.io/arceos/)
An experimental modular operating system (or unikernel) written in Rust.
ArceOS was inspired a lot by [Unikraft](https://github.com/unikraft/unikraft).
🚧 Working In Progress.
## Features & TODOs
* [x] Architecture: x86_64, riscv64, aarch64
* [x] Platform: QEMU pc-q35 (x86_64), virt (riscv64/aarch64)
* [x] Multi-thread
* [x] FIFO/RR/CFS scheduler
* [x] VirtIO net/blk/gpu drivers
* [x] TCP/UDP net stack using [smoltcp](https://github.com/smoltcp-rs/smoltcp)
* [x] Synchronization/Mutex
* [x] SMP scheduling with single run queue
* [x] File system
* [ ] Compatible with Linux apps
* [ ] Interrupt driven device I/O
* [ ] Async I/O
## Example apps
Example applications can be found in the [apps/](apps/) directory. All applications must at least depend on the following modules, while other modules are optional:
* [axruntime](modules/axruntime/): Bootstrapping from the bare-metal environment, and initialization.
* [axhal](modules/axhal/): Hardware abstraction layer, provides unified APIs for cross-platform.
* [axconfig](modules/axconfig/): Platform constants and kernel parameters, such as physical memory base, kernel load addresses, stack size, etc.
* [axlog](modules/axlog/): Multi-level formatted logging.
The currently supported applications (Rust), as well as their dependent modules and features, are shown in the following table:
| App | Extra modules | Enabled features | Description |
|-|-|-|-|
| [helloworld](apps/helloworld/) | | | A minimal app that just prints a string |
| [exception](apps/exception/) | | paging | Exception handling test |
| [memtest](apps/memtest/) | axalloc | alloc, paging | Dynamic memory allocation test |
| [display](apps/display/) | axalloc, axdisplay | alloc, paging, display | Graphic/GUI test |
| [yield](apps/task/yield/) | axalloc, axtask | alloc, paging, multitask, sched_fifo | Multi-threaded yielding test |
| [parallel](apps/task/parallel/) | axalloc, axtask | alloc, paging, multitask, sched_fifo | Parallel computing test (to test synchronization & mutex) |
| [sleep](apps/task/sleep/) | axalloc, axtask | alloc, paging, multitask, sched_fifo | Thread sleeping test |
| [shell](apps/fs/shell/) | axalloc, axdriver, axfs | alloc, paging, fs | A simple shell that responds to filesystem operations |
| [httpclient](apps/net/httpclient/) | axalloc, axdriver, axnet | alloc, paging, net | A simple client that sends an HTTP request and then prints the response |
| [echoserver](apps/net/echoserver/) | axalloc, axdriver, axnet, axtask | alloc, paging, net, multitask | A multi-threaded TCP server that reverses messages sent by the client |
| [httpserver](apps/net/httpserver/) | axalloc, axdriver, axnet, axtask | alloc, paging, net, multitask | A multi-threaded HTTP server that serves a static web page |
## Build & Run
### Install build dependencies
Install [cargo-binutils](https://github.com/rust-embedded/cargo-binutils) to use `rust-objcopy` and `rust-objdump` tools:
```bash
cargo install cargo-binutils
```
#### for build&run C apps
Install `libclang-dev`:
```bash
sudo apt install libclang-dev
```
Download&Install `cross-musl-based toolchains`:
```
# download
wget https://musl.cc/aarch64-linux-musl-cross.tgz
wget https://musl.cc/riscv64-linux-musl-cross.tgz
wget https://musl.cc/x86_64-linux-musl-cross.tgz
# install
tar zxf aarch64-linux-musl-cross.tgz
tar zxf riscv64-linux-musl-cross.tgz
tar zxf x86_64-linux-musl-cross.tgz
# exec below command in bash OR add below info in ~/.bashrc
export PATH=`pwd`/x86_64-linux-musl-cross/bin:`pwd`/aarch64-linux-musl-cross/bin:`pwd`/riscv64-linux-musl-cross/bin:$PATH
```
### Dependencies for running apps
```bash
# for Debian/Ubuntu
sudo apt-get install qemu-system
```
```bash
# for macos
brew install qemu
```
other systems and arch please refer to [Qemu Download](https://www.qemu.org/download/#linux)
### Example apps
```bash
# build app in arceos directory
make A=path/to/app ARCH= LOG=
```
Where `` should be one of `riscv64`, `aarch64`，`x86_64`.
`` should be one of `off`, `error`, `warn`, `info`, `debug`, `trace`.
`path/to/app` is the relative path to the example application.
More arguments and targets can be found in [Makefile](Makefile).
For example, to run the [httpserver](apps/net/httpserver/) on `qemu-system-aarch64` with 4 cores:
```bash
make A=apps/net/httpserver ARCH=aarch64 LOG=info SMP=4 run NET=y
```
Note that the `NET=y` argument is required to enable the network device in QEMU. These arguments (`BLK`, `GRAPHIC`, etc.) only take effect at runtime not build time.
### Your custom apps
#### Rust
1. Create a new rust package with `no_std` and `no_main` environment.
2. Add `axstd` dependency and features to enable to `Cargo.toml`:
```toml
[dependencies]
axstd = { path = "/path/to/arceos/ulib/axstd", features = ["..."] }
```
3. Call library functions from `axstd` in your code, just like the Rust [std](https://doc.rust-lang.org/std/) library.
4. Build your application with ArceOS, by running the `make` command in the application directory:
```bash
# in app directory
make -C /path/to/arceos A=$(pwd) ARCH= run
# more args: LOG= SMP= NET=[y|n] ...
```
All arguments and targets are the same as above.
#### C
1. Create `axbuild.mk` and `features.txt` in your project:
```bash
app/
├── foo.c
├── bar.c
├── axbuild.mk # optional, if there is only one `main.c`
└── features.txt # optional, if only use default features
```
2. Add build targets to `axbuild.mk`, add features to enable to `features.txt` (see this [example](apps/c/sqlite3/)):
```bash
# in axbuild.mk
app-objs := foo.o bar.o
```
```bash
# in features.txt
alloc
paging
net
```
3. Build your application with ArceOS, by running the `make` command in the application directory:
```bash
# in app directory
make -C /path/to/arceos A=$(pwd) ARCH= run
# more args: LOG= SMP= NET=[y|n] ...
```
### How to build ArceOS for specific platforms and devices
Set the `PLATFORM` variable when run `make`:
```bash
# Build helloworld for raspi4
make PLATFORM=aarch64-raspi4 A=apps/helloworld
```
You may also need to select the corrsponding device drivers by setting the `FEATURES` variable:
```bash
# Build the shell app for raspi4, and use the SD card driver
make PLATFORM=aarch64-raspi4 A=apps/fs/shell FEATURES=driver-bcm2835-sdhci
# Build Redis for the bare-metal x86_64 platform, and use the ixgbe and ramdisk driver
make PLATFORM=x86_64-pc-oslab A=apps/c/redis FEATURES=driver-ixgbe,driver-ramdisk SMP=4
```
### How to reuse ArceOS modules in your own project
```toml
# In Cargo.toml
[dependencies]
axalloc = { git = "https://github.com/arceos-org/arceos.git", tag = "v0.1.0" } # modules/axalloc
axhal = { git = "https://github.com/arceos-org/arceos.git", tag = "v0.1.0" } # modules/axhal
```
## Design
