Build LLVM Toolchains #3
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| name: Build LLVM Toolchains | |
| on: | |
| workflow_dispatch: | |
| inputs: | |
| llvm_version: | |
| description: 'LLVM version to build (e.g. 21.1.1)' | |
| required: true | |
| default: '21.1.1' | |
| force_rebuild: | |
| description: 'Force a complete rebuild of Clang' | |
| type: boolean | |
| required: false | |
| default: false | |
| aos_ref: | |
| description: 'Branch, tag, or commit ref of RealtimeRoboticsGroup/aos to retrieve the script' | |
| required: true | |
| default: 'main' | |
| env: | |
| CCACHE_DIR: ${{ github.workspace }}/.ccache | |
| CMAKE_C_COMPILER_LAUNCHER: ccache | |
| CMAKE_CXX_COMPILER_LAUNCHER: ccache | |
| jobs: | |
| build: | |
| name: Build LLVM (${{ matrix.os }} - ${{ matrix.arch }}) | |
| runs-on: ${{ matrix.runner }} | |
| permissions: | |
| contents: write | |
| strategy: | |
| fail-fast: false | |
| matrix: | |
| include: | |
| - os: linux | |
| arch: amd64 | |
| runner: ubuntu-22.04 | |
| - os: linux | |
| arch: arm64 | |
| runner: ubuntu-24.04-arm | |
| - os: macos | |
| arch: arm64 | |
| runner: macos-14 | |
| steps: | |
| - name: Checkout code | |
| uses: actions/checkout@v4 | |
| - name: Checkout AOS repository | |
| uses: actions/checkout@v4 | |
| with: | |
| repository: RealtimeRoboticsGroup/aos | |
| ref: ${{ github.event.inputs.aos_ref }} | |
| path: aos_repo | |
| - name: Patch AOS build script (enable ZLIB/ZSTD) | |
| run: | | |
| python3 -c " | |
| p = 'aos_repo/tools/helpers/build_from_llvm.py' | |
| content = open(p).read() | |
| old = '\"-DLLVM_ENABLE_TERMINFO=OFF\",' | |
| new = old + '\n \"-DLLVM_ENABLE_ZLIB=FORCE_ON\",\n \"-DLLVM_ENABLE_ZSTD=FORCE_ON\",' | |
| if old in content: | |
| open(p, 'w').write(content.replace(old, new)) | |
| print('Successfully patched build_from_llvm.py') | |
| else: | |
| print('Warning: Target string not found, patch skipped') | |
| " | |
| - name: Install dependencies (Linux) | |
| if: matrix.os == 'linux' | |
| run: | | |
| sudo apt-get update | |
| sudo apt-get install -y cmake ninja-build clang lld zstd ccache zlib1g-dev libzstd-dev | |
| - name: Install dependencies (macOS) | |
| if: matrix.os == 'macos' | |
| run: | | |
| brew install cmake ninja zstd ccache | |
| - name: Setup ccache | |
| uses: actions/cache@v4 | |
| with: | |
| path: .ccache | |
| key: ccache-${{ matrix.os }}-${{ matrix.arch }}-${{ github.event.inputs.llvm_version }}-${{ github.run_id }} | |
| restore-keys: | | |
| ccache-${{ matrix.os }}-${{ matrix.arch }}-${{ github.event.inputs.llvm_version }}- | |
| ccache-${{ matrix.os }}-${{ matrix.arch }}- | |
| - name: Configure ccache | |
| run: | | |
| ccache --set-config=max_size=2G | |
| ccache -z | |
| - name: Run Build Script | |
| run: | | |
| python3 aos_repo/tools/helpers/build_from_llvm.py \ | |
| --llvm-version ${{ github.event.inputs.llvm_version }} \ | |
| --clang \ | |
| --libcxx msan \ | |
| --tempdir /tmp/llvm-build \ | |
| --force-redownload \ | |
| ${{ github.event.inputs.force_rebuild == 'true' && '--clang-force-rebuild' || '' }} | |
| - name: Show ccache stats | |
| run: | | |
| ccache -s | |
| - name: Publish to GitHub Release | |
| env: | |
| GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} | |
| run: | | |
| TAG="${{ github.event.inputs.llvm_version }}" | |
| # Create the release if it doesn't exist, ignore if duplicate/exists | |
| gh release create "$TAG" \ | |
| --title "$TAG" \ | |
| --notes "Automated LLVM and MSan toolchain builds." 2>/dev/null || true | |
| # Upload all generated .tar.zst packages directly | |
| gh release upload "$TAG" /tmp/llvm-build/*.tar.zst --clobber |