Camelot Barbican

Barbican is the Camelot OS meta tools for building project, SDK and integration, written in python.

Dependencies

• Python >= 3.11
• Jinja2 >= 3.1.0
• jinja-cli >= 1.2.0
• jsonschema >= 4.18.0
• kconfiglib >= 14.1.0
• lief >= 0.15
• meson >= 1.7
• ninja >= 1.11.0
• ninja_syntax > 1.7
• svd2json >= 0.1.6
• dts-utils >= 0.3.0
• referencing >= 0.33.0
• rich >= 13.6
• GitPython >= 3.1.43

Usage

A project is describe by a toml configuration file, a dts for the targeted SoC and Kconfig dotconfig for kernel and application(s).

Configuration

The following is the sample project configuration describing a simple project with simple application(s)

name = 'HelloWorld Project'
license = 'Apache-2.0'
license_file = ['LICENSE.txt']
dts = 'dts/sample.dts'
crossfile = 'cm33-none-eabi-gcc.ini'
version = 'v0.0.1'

[kernel]
scm.git.uri = 'https://github.com/camelot-os/sentry-kernel.git'
scm.git.revision = 'main'
config = 'configs/sentry/nucleo_u5a5.config'

[runtime]
scm.git.uri = 'git@github.com:camelot-os/shield.git'
scm.git.revision = 'main'
config = 'configs/shield/shield.config'

[application.hello]
scm.git.uri = 'https://github.com/camelot-os/sample-rust-app.git'
scm.git.revision = 'main'
config = 'configs/hello/hello.config'
build.backend = 'cargo'
depends = []
provides = ['hello.elf']

Download

Downloads kernel/runtime and applications describe in project.toml to src directory

barbican download

Update

Updates sources if configuration change and/or revision update. Package need to be already downloaded to be updated.

barbican update

Setup

Generates jinja build script for project build (i.e. kernel, runtime, application and firmware integration). Files are generated in build directory.

barbican setup

Build

cd output/build
ninja

TODO

• SDK generation
• Pre built C and Rust toolchain in SDK

License

Copyright 2024 - 2025 Ledger SAS

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

 http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.