[libc][docs] split up platform and arch support #115
Workflow file for this run
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| # This workflow is for pre-commit testing of the LLVM-libc project. | |
| name: LLVM-libc Pre-commit Overlay Tests | |
| permissions: | |
| contents: read | |
| on: | |
| pull_request: | |
| branches: [ "main" ] | |
| paths: | |
| - 'libc/**' | |
| - '.github/workflows/libc-overlay-tests.yml' | |
| jobs: | |
| build: | |
| runs-on: ${{ matrix.os }} | |
| strategy: | |
| # Set fail-fast to false to ensure that feedback is delivered for all matrix combinations. | |
| fail-fast: false | |
| matrix: | |
| include: | |
| # TODO: add linux gcc when it is fixed | |
| - os: ubuntu-24.04 | |
| compiler: | |
| c_compiler: clang | |
| cpp_compiler: clang++ | |
| - os: windows-2022 | |
| compiler: | |
| c_compiler: clang-cl | |
| cpp_compiler: clang-cl | |
| - os: macos-14 | |
| compiler: | |
| c_compiler: clang | |
| cpp_compiler: clang++ | |
| steps: | |
| - uses: actions/checkout@v4 | |
| # Libc's build is relatively small comparing with other components of LLVM. | |
| # A fresh linux overlay takes about 180MiB of uncompressed disk space, which can | |
| # be compressed into ~40MiB. MacOS and Windows overlay builds are less than 10MiB | |
| # after compression. Limiting the cache size to 1G should be enough. | |
| # Prefer sccache as it is modern and it has a guarantee to work with MSVC. | |
| # Do not use direct GHAC access even though it is supported by sccache. GHAC rejects | |
| # frequent small object writes. | |
| - name: Setup ccache | |
| uses: hendrikmuhs/ccache-action@v1 | |
| with: | |
| max-size: 1G | |
| key: libc_overlay_build_${{ matrix.os }}_${{ matrix.compiler.c_compiler }} | |
| variant: sccache | |
| # MPFR is required by some of the mathlib tests. | |
| - name: Prepare dependencies (Ubuntu) | |
| if: runner.os == 'Linux' | |
| run: | | |
| sudo apt-get update | |
| sudo apt-get install -y libmpfr-dev libgmp-dev libmpc-dev ninja-build | |
| # Chocolatey is shipped with Windows runners. Windows Server 2025 recommends WinGet. | |
| # Consider migrating to WinGet when Windows Server 2025 is available. | |
| - name: Prepare dependencies (Windows) | |
| if: runner.os == 'Windows' | |
| run: | | |
| choco install ninja | |
| - name: Prepare dependencies (macOS) | |
| if: runner.os == 'macOS' | |
| run: | | |
| brew install ninja | |
| - name: Set reusable strings | |
| id: strings | |
| shell: bash | |
| run: | | |
| echo "build-output-dir=${{ github.workspace }}/build" >> "$GITHUB_OUTPUT" | |
| # Use MinSizeRel to reduce the size of the build. | |
| # Notice that CMP0141=NEW and MSVC_DEBUG_INFORMATION_FORMAT=Embedded are required | |
| # by the sccache tool. | |
| - name: Configure CMake | |
| run: > | |
| cmake -B ${{ steps.strings.outputs.build-output-dir }} | |
| -DCMAKE_CXX_COMPILER=${{ matrix.compiler.cpp_compiler }} | |
| -DCMAKE_C_COMPILER=${{ matrix.compiler.c_compiler }} | |
| -DCMAKE_BUILD_TYPE=MinSizeRel | |
| -DCMAKE_C_COMPILER_LAUNCHER=sccache | |
| -DCMAKE_CXX_COMPILER_LAUNCHER=sccache | |
| -DCMAKE_POLICY_DEFAULT_CMP0141=NEW | |
| -DCMAKE_MSVC_DEBUG_INFORMATION_FORMAT=Embedded | |
| -DLLVM_ENABLE_RUNTIMES=libc | |
| -G Ninja | |
| -S ${{ github.workspace }}/runtimes | |
| - name: Build | |
| run: > | |
| cmake | |
| --build ${{ steps.strings.outputs.build-output-dir }} | |
| --parallel | |
| --config MinSizeRel | |
| --target libc | |
| - name: Test | |
| run: > | |
| cmake | |
| --build ${{ steps.strings.outputs.build-output-dir }} | |
| --parallel | |
| --target check-libc |