Cross Development Environment

This repository provides a cross-development environment for RISC-V using QEMU, OpenSBI, Linux, and Buildroot. The setup script automates the preparation of toolchains, QEMU, OpenSBI, Linux kernel, and Buildroot.

Prerequisites

Ensure you have the following dependencies installed on your system:

• Git
• wget
• tar
• build-essential
• cmake
• ninja-build
• python3-venv
• cpio
• Rust (with nightly toolchain)

You can install these dependencies using the following command:

sudo apt-get update
sudo apt-get install -y git wget tar build-essential cmake ninja-build python3-venv cpio

To install Rust and the required nightly toolchain, use the following commands:

curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
source $HOME/.cargo/env
rustup toolchain install nightly
rustup default nightly

Setup

To set up the cross-development environment, run the run.sh script with the setup task:

./run.sh setup

This will perform the following steps:

1. Install dependencies
2. Prepare toolchains
3. Prepare QEMU
4. Prepare OpenSBI
5. Prepare Linux kernel
6. Prepare Buildroot

Usage

Running QEMU

To run QEMU with the prepared images, use the run_qemu task:

./run.sh run_qemu

Connecting via SSH

To connect to the running QEMU instance via SSH, use the run_ssh task:

./run.sh run_ssh

Running GDB

To run GDB with the prepared environment, use the run_gdb task:

./run.sh run_gdb

Directory Structure

• .work: Contains the working directories for toolchains, QEMU, OpenSBI, Linux, and Buildroot.
• scripts: Contains custom scripts and configurations.
• images: Contains the generated images for QEMU.

Customization

You can customize the setup by modifying the run.sh script and the configuration files in the scripts directory.

CrossDev Library

The crossdev library provides the core functionality for setting up and managing the cross-development environment. It includes modules for handling configurations, toolchains, QEMU, OpenSBI, Linux, and Buildroot.

Example Usage

Here is an example of how to use the crossdev library in your Rust code:

use crossdev::{config::*, crossdev::*, utils::*};
use color_eyre::Result;

fn main() -> Result<()> {
    color_eyre::install()?;

    let config_path = "path/to/config.toml";
    let config = read_config_from_file(config_path)?;
    let mut xdev = CrossDev::new(config)?;

    xdev.setup()?;
    xdev.run_qemu(None)?;

    Ok(())
}

License

This project is licensed under the MIT License. See the LICENSE file for details.

Acknowledgements

This project uses the following open-source projects:

• QEMU
• OpenSBI
• Linux Kernel
• Buildroot

Contributing

Contributions are welcome! Please open an issue or submit a pull request for any improvements or bug fixes.

Contact

For any questions or support, please contact auking45@gmail.com.