Build Linux Kernel with ThinLTO #5
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| name: Build Linux Kernel with ThinLTO | |
| on: | |
| # Automatic triggers | |
| push: | |
| branches: | |
| - main | |
| pull_request: | |
| branches: | |
| - main | |
| # Manual trigger | |
| workflow_dispatch: | |
| jobs: | |
| build: | |
| name: Build Kernel with ThinLTO | |
| runs-on: ubuntu-latest | |
| steps: | |
| - name: Checkout code | |
| uses: actions/checkout@v2 | |
| - name: Set up dependencies | |
| run: | | |
| sudo apt-get update | |
| sudo apt-get install -y build-essential libncurses-dev bison flex libssl-dev libelf-dev clang lld | |
| - name: Configure Kernel Build | |
| run: | | |
| export ARCH=x86_64 | |
| export KERNEL_BUILD_DIR=output | |
| export KERNEL_VERSION="0.$(date +'%Y%m%d').$(date +'%H%M%S')" | |
| echo "KERNEL_VERSION=$KERNEL_VERSION" >> $GITHUB_ENV | |
| # Configure the kernel (adjust to your defconfig as needed) | |
| make O=$KERNEL_BUILD_DIR defconfig | |
| # Ensure configuration is saved to .config | |
| make O=$KERNEL_BUILD_DIR olddefconfig | |
| - name: Build Kernel with ThinLTO | |
| run: | | |
| # Compile with ThinLTO flags | |
| make -j$(nproc) O=$KERNEL_BUILD_DIR \ | |
| ARCH=x86_64 \ | |
| CC=clang \ | |
| LD=ld.lld \ | |
| CFLAGS="-flto=thin" \ | |
| KCFLAGS="-flto=thin" | |
| - name: Archive the build artifacts | |
| run: | | |
| mkdir -p artifacts | |
| tar -czvf artifacts/kernel-build-$KERNEL_VERSION.tar.gz $KERNEL_BUILD_DIR/arch/x86/boot/bzImage | |
| - name: Upload Kernel Artifact | |
| uses: actions/upload-artifact@v3 | |
| with: | |
| name: kernel-build | |
| path: artifacts/kernel-build-$KERNEL_VERSION.tar.gz | |
| release: | |
| name: Release Kernel | |
| needs: build | |
| runs-on: ubuntu-latest | |
| steps: | |
| - name: Download build artifact | |
| uses: actions/download-artifact@v3 | |
| with: | |
| name: kernel-build | |
| - name: Create GitHub Release | |
| id: create_release | |
| uses: actions/create-release@v1 | |
| env: | |
| GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} | |
| with: | |
| tag_name: "v${{ env.KERNEL_VERSION }}" # Auto-generate tag using version | |
| release_name: "Kernel Build v${{ env.KERNEL_VERSION }}" | |
| draft: false | |
| prerelease: true | |
| body: | | |
| **Build Information** | |
| - **Version:** ${{ env.KERNEL_VERSION }} | |
| - **Build Configuration:** ThinLTO | |
| - **Build Date:** $(date +'%Y-%m-%d %H:%M:%S') | |
| - name: Upload Kernel to Release | |
| uses: actions/upload-release-asset@v1 | |
| env: | |
| GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} | |
| with: | |
| upload_url: ${{ steps.create_release.outputs.upload_url }} | |
| asset_path: artifacts/kernel-build-${{ env.KERNEL_VERSION }}.tar.gz | |
| asset_name: kernel-build-${{ env.KERNEL_VERSION }}.tar.gz | |
| asset_content_type: application/gzip |