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B19 / LLVM

Community-maintained distribution of LLVM/Clang built on B19/Ubuntu. This repository holds only the packaging — Dockerfile, build scripts, and configuration, all MIT-licensed; the upstream LLVM/Clang is fetched at build time and retains its own licensing.

Features

• Architecture-specific optimization flags with compile-time probing
• Transparent compiler caching (sccache / ccache)
• LLVM/Clang toolchain from apt.llvm.org with series selection

It also inherits the features of B19 / Ubuntu — see Features for the full list.

What this provides

• Container image ghcr.io/damian-buho/b19/llvm:llvm22
• Container image ghcr.io/damian-buho/b19/llvm:llvm21
• Container image damianbuho/b19-llvm:llvm22
• Container image damianbuho/b19-llvm:llvm21

Installation

Pull the published container image:

Pull from GHCR — linux/amd64

docker pull ghcr.io/damian-buho/b19/llvm:llvm22

Pull from DockerHub — linux/amd64

docker pull damianbuho/b19-llvm:llvm22

Series: llvm22 | llvm21

Stable releases also publish X.Y.Z, X.Y and X tags — pull the precision you want to pin.

If the registries above are unreachable, pull from the origin instead:

Pull from Kiota — linux/amd64

docker pull kiota.ch/b19/llvm:llvm22

Series: llvm22 | llvm21

Usage

Build on top of this image:

From GHCR

FROM ghcr.io/damian-buho/b19/llvm:llvm22

From DockerHub

FROM damianbuho/b19-llvm:llvm22

Series: llvm22 | llvm21

For the recommended multi-stage pattern and the build-hook system (build.d), scaffold a derivative with b19/scripts/scaffold.sh from m6e/b19.

Building

Clone the repository with its submodules:

git clone --recurse-submodules https://github.com/damian-buho/b19-llvm llvm && cd llvm

Build the container image locally:

make container-build

• Makefile reference

Run make with no arguments for the default target; run make help to list every target.

For the local dev loop, make dev-container brings up the dev-container.

Pipeline entry points:

• make analyzed — Run the heavy analysis sweep (mutation testing, benchmarks)
• make audited — Re-scan the pinned dependencies and published artifacts for new vulnerabilities
• make check-outdated — Report every pinned dependency that lags upstream
• make release-is-ready — Run the pseudo-CI pipeline locally — build, test and scan, without publishing

Policies

• How to contribute
• Security policy
• Getting support
• Code of Conduct
• AI and LLM Policy

Links

• Projectfile Specification

License

This project is licensed under MIT — see the LICENSE file for details.