# rcore-os/rCore

Rust version of THU uCore OS. Linux compatible.

Repository: https://github.com/rcore-os/rCore
Canonical: https://ross.abutalabs.com/products/rcore
Language: Rust
License: MIT
License Family: permissive
Topics: rust, osdev, riscv, x86-64, aarch64, mips
Last push: 2023-08-24T13:46:34+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 3075, "days_push": 1105, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3691, forks 377 (observed 2026-08-28T04:08:14.758133+00:00)

## What it is
rCore is a teaching operating system written in Rust, a Rust port of THU's uCore OS Plus, with a Linux-compatible syscall interface. It supports x86_64, RISC-V, AArch64, and MIPS architectures and is used in Tsinghua University OS courses.

## Use cases
- learn operating system development in Rust
- run Linux userspace programs on a custom Rust kernel
- study OS course labs for x86_64 RISC-V AArch64 and MIPS
- experiment with kernel modules and async IO in a teaching kernel
- build and run an OS in QEMU for coursework

## When to choose
- you want a Rust-based educational OS for a university course
- you need a Linux-compatible teaching kernel running in QEMU
- you want to study OS internals across multiple CPU architectures

## When to avoid
- you need a maintained or production-ready OS kernel
- you want the latest developments - use zCore or ArceOS instead
- you need a general-purpose Linux replacement

## Facets
- artifact type: learning-resource
- maturity: abandoned
- function: embedded, developer-tools
- domain: operating-systems, education, embedded-systems
- platform: cross-platform, rust
- tags: teaching-os, osdev, rust-os, riscv, aarch64, mips, x86-64, linux-compatible, kernel, qemu, operating-systems, linux, macos

## Member repositories
- rcore-os/rCore (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:14.758133+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:31:07.496383+00:00, confidence not recorded.
  - readme: https://github.com/rcore-os/rCore (fetched 2026-08-28T04:08:14.758133+00:00, sha a94ed597f2c1)
- Data as of 2026-08-30T08:39:29.467469+00:00.