xemu/.github/workflows/build-windows.yml

name: Build for Windows

on:
  workflow_call:
    inputs:
      pkg_version:
        description: Build version
        required: true
        type: string

jobs:
  build:
    name: Build for Windows (${{ matrix.arch }}, ${{ matrix.configuration }})
    runs-on: ubuntu-latest
    strategy:
      matrix:
        arch: [x86_64, arm64]
        configuration: [debug, release]
    container:
      image: ghcr.io/xemu-project/xemu-win64-toolchain${{ matrix.arch == 'x86_64' && '-gcc:sha-18018f1' || ':sha-0d06ce8' }}
    defaults:
      run:
        shell: bash
    env:
      CCACHE_DIR: /tmp/xemu-ccache
      CCACHE_MAXSIZE: 512M
      LTO_CACHE_DIR: /tmp/xemu-lto-ccache
      CROSSPREFIX: ${{ matrix.arch == 'arm64' && 'aarch64' || 'x86_64' }}-w64-mingw32.static-
      CROSSAR: ${{ matrix.arch == 'arm64' && 'aarch64' || 'x86_64' }}-w64-mingw32.static-${{ matrix.arch == 'arm64' && 'ar' || 'gcc-ar' }}
    steps:
    - name: Download source package
      uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v4
      with:
        name: src
    - name: Install zstd
      if: ${{ matrix.arch == 'arm64' }}
      run: apt-get install zstd
    - name: Extract source package
      run: tar -xf xemu-${{ inputs.pkg_version }}.tar.zst --strip-components=2
    - name: Initialize compiler cache
      id: cache
      uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v4
      with:
        path: |
          ${{ env.CCACHE_DIR }}
          ${{ env.LTO_CACHE_DIR }}
        key: cache-wincross-${{ runner.os }}-${{ matrix.arch }}-${{ matrix.configuration }}-${{ github.sha }}
        restore-keys: cache-wincross-${{ runner.os }}-${{ matrix.arch }}-${{ matrix.configuration }}-
    - name: Setup ccache
      run: |
        mkdir -p ${CCACHE_DIR}
        ccache -z
    - name: Setup build options
      run: |
        if [[ "${{ matrix.configuration }}" == "debug" ]]; then
          opts=(
            --debug
          )
        elif [[ "${{ matrix.arch }}" == "x86_64" ]]; then
          opts=(
            --extra-cflags="-flto-incremental=${LTO_CACHE_DIR} -flto-partition=cache"
            -Db_lto=true
          )
          mkdir -p ${LTO_CACHE_DIR}
        elif [[ "${{ matrix.arch }}" == "arm64" ]]; then
          # FIXME: llvm-mingw ThinLTO has an issue with `qemu_build_not_reached_always`
          #        being intentionaly undefined (to ensure 'unreachable' paths are
          #        optimized out). Regular LTO doesn't pass cv2pdb. Resolve linking
          #        failure and have llvm toolchain generate PDB directly.
          opts=()
        fi
        echo "XEMU_BUILD_OPTIONS=${opts[*]}" >> "$GITHUB_ENV"
    - name: Compile
      run: ./build.sh -p win64-cross ${XEMU_BUILD_OPTIONS}
    - name: Report ccache stats
      run: ccache -s
    - name: Upload build artifact
      uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v4
      with:
        name: xemu-windows-${{ matrix.arch }}-${{ matrix.configuration }}
        path: dist

  # Generate a symbols package for Windows. Use cv2pdb to generate PDBs from
  # DWARF and update + strip the executable. Re-package the original release
  # and create symbols package.
  generate_pdb:
    name: Generate PDB for Windows (${{ matrix.arch }}, ${{ matrix.configuration }})
    runs-on: windows-latest
    needs: build
    strategy:
      matrix:
        arch: [x86_64, arm64]
        configuration: [debug, release]
    steps:
    - name: Download artifacts
      uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v4
      with:
        name: xemu-windows-${{ matrix.arch }}-${{ matrix.configuration }}
        path: dist
    - name: Generate PDB
      run: |
        Invoke-WebRequest -Uri "https://github.com/rainers/cv2pdb/releases/download/v0.52/cv2pdb-0.52.zip" -OutFile "cv2pdb.zip"
        7z x -ocv2pdb -y cv2pdb.zip
        cd dist
        ../cv2pdb/cv2pdb64.exe xemu.exe
    - name: Determine package version
      id: package_id
      shell: bash
      env:
        VERSION: ${{ inputs.pkg_version }}${{ matrix.configuration == 'debug' && '-dbg' || '' }}
      run: |
        echo "pkg_filename=xemu-${VERSION}-windows-${{ matrix.arch }}.zip" >> $GITHUB_OUTPUT
        echo "pdb_filename=xemu-${VERSION}-windows-${{ matrix.arch }}-pdb.zip" >> $GITHUB_OUTPUT
    - name: Package
      run: |
        mkdir dist-pdb
        cd dist
        7z a -tzip ../dist-pdb/${{ steps.package_id.outputs.pkg_filename}} * "-xr!*.pdb"
        7z a -tzip ../dist-pdb/${{ steps.package_id.outputs.pdb_filename}} "-ir!*.pdb"
    - name: Upload build artifact
      uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v4
      with:
        name: xemu-windows-${{ matrix.arch }}-${{ matrix.configuration }}-pdb
        path: dist-pdb
        compression-level: 0