build-cross-compile.yml

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name: 'Build (cross-compile)'

on:
  workflow_call:
    inputs:
      gcc-major-version:
        required: false
        type: string
        default: '10'
      apt-gcc-version:
        required: false
        type: string
        default: '10.3.0-1ubuntu1~20.04'
      apt-gcc-cross-suffix:
        required: false
        type: string
        default: 'cross1'

jobs:
  build-cross-compile:
    name: build
    runs-on: ubuntu-20.04

    strategy:
      fail-fast: false
      matrix:
        target-cpu:
          - aarch64
          - arm
          - s390x
          - ppc64le
        include:
          - target-cpu: aarch64
            debian-arch: arm64
            gnu-arch: aarch64
          - target-cpu: arm
            debian-arch: armhf
            gnu-arch: arm
            gnu-abi: eabihf
          - target-cpu: s390x
            debian-arch: s390x
            gnu-arch: s390x
          - target-cpu: ppc64le
            debian-arch: ppc64el
            gnu-arch: powerpc64le

    steps:
      - name: 'Checkout the JDK source'
        uses: actions/checkout@v3

      - name: 'Get the BootJDK'
        id: bootjdk
        uses: ./.github/actions/get-bootjdk
        with:
          platform: linux-x64

        # Use linux-x64 JDK bundle as build JDK
      - name: 'Get build JDK'
        id: buildjdk
        uses: ./.github/actions/get-bundles
        with:
          platform: linux-x64

        # Upgrading apt to solve libc6 installation bugs, see JDK-8260460.
      - name: 'Install toolchain and dependencies'
        run: |
          # Install dependencies using apt-get
          sudo apt-get update
          sudo apt-get install --only-upgrade apt
          sudo apt-get install \
              gcc-${{ inputs.gcc-major-version }}=${{ inputs.apt-gcc-version }} \
              g++-${{ inputs.gcc-major-version }}=${{ inputs.apt-gcc-version }} \
              gcc-${{ inputs.gcc-major-version }}-${{ matrix.gnu-arch }}-linux-gnu${{ matrix.gnu-abi}}=${{ inputs.apt-gcc-version }}${{ inputs.apt-gcc-cross-suffix }} \
              g++-${{ inputs.gcc-major-version }}-${{ matrix.gnu-arch }}-linux-gnu${{ matrix.gnu-abi}}=${{ inputs.apt-gcc-version }}${{ inputs.apt-gcc-cross-suffix }} \
              libxrandr-dev libxtst-dev libcups2-dev libasound2-dev
          sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-${{ inputs.gcc-major-version }} 100 --slave /usr/bin/g++ g++ /usr/bin/g++-${{ inputs.gcc-major-version }}

      - name: 'Check cache for sysroot'
        id: get-cached-sysroot
        uses: actions/cache@v3
        with:
          path: sysroot
          key: sysroot-${{ matrix.debian-arch }}-${{ hashFiles('./.github/workflows/build-cross-compile.yml') }}

      - name: 'Install sysroot dependencies'
        run: sudo apt-get install debootstrap qemu-user-static
        if: steps.get-cached-sysroot.outputs.cache-hit != 'true'

      - name: 'Create sysroot'
        run: >
          sudo qemu-debootstrap
          --arch=${{ matrix.debian-arch }}
          --verbose
          --include=fakeroot,symlinks,build-essential,libx11-dev,libxext-dev,libxrender-dev,libxrandr-dev,libxtst-dev,libxt-dev,libcups2-dev,libfontconfig1-dev,libasound2-dev,libfreetype6-dev,libpng-dev
          --resolve-deps
          buster
          sysroot
          https://httpredir.debian.org/debian/
        if: steps.get-cached-sysroot.outputs.cache-hit != 'true'

      - name: 'Prepare sysroot'
        run: |
          # Prepare sysroot and remove unused files to minimize cache
          sudo chroot sysroot symlinks -cr .
          sudo chown ${USER} -R sysroot
          rm -rf sysroot/{dev,proc,run,sys}
        if: steps.get-cached-sysroot.outputs.cache-hit != 'true'

      - name: 'Configure'
        run: >
          bash configure
          --with-conf-name=linux-${{ matrix.target-cpu }}
          --with-version-opt=${GITHUB_ACTOR}-${GITHUB_SHA}
          --with-boot-jdk=${{ steps.bootjdk.outputs.path }}
          --with-zlib=system
          --enable-debug
          --disable-precompiled-headers
          --openjdk-target=${{ matrix.gnu-arch }}-linux-gnu${{ matrix.gnu-abi}}
          --with-sysroot=sysroot
          --with-build-jdk=${{ steps.buildjdk.outputs.jdk-path }}
          CC=${{ matrix.gnu-arch }}-linux-gnu${{ matrix.gnu-abi}}-gcc-10
          CXX=${{ matrix.gnu-arch }}-linux-gnu${{ matrix.gnu-abi}}-g++-10

      - name: 'Build'
        id: build
        uses: ./.github/actions/do-build
        with:
          make-target: 'hotspot'
          platform: linux-${{ matrix.target-cpu }}