linux-build.yml

name: Linux kernel module

on:
  push:
    paths:
      - "mrmShared/linux/**"
  pull_request:
    paths:
      - "mrmShared/linux/**"
  workflow_dispatch:

jobs:
  specific:
    name: With ${{ matrix.version }}
    runs-on: ${{ matrix.os }}
    env:
      KSER: ${{ matrix.series }}
      KVER: ${{ matrix.version }}
      CC: ${{ matrix.cc }}
    strategy:
      fail-fast: false
      matrix:
        include:
          - name: Ubuntu 20.04 - Series 4.x
            os: ubuntu-20.04
            series: 4.x
            version: 4.9.1

          - name: Ubuntu 20.04 - Series 5.x
            os: ubuntu-20.04
            series: 5.x
            version: 5.9.6

    steps:
      - uses: actions/checkout@v2
      - name: Info
        run: |
          gcc --version
      - name: Deps
        run: |
          sudo apt-get update
          # linux-headers-* only to pull in kbuild deps
          sudo apt-get -y install linux-headers-`uname -r` kmod libelf-dev
          [ "${{ matrix.cc }}" != "gcc-4.8" ] || sudo apt-get -y install gcc-4.8
      - name: Setup Linux
        run: |
          install -d kernel
          if [ "$KSER" == "latest" ]; then
            KSER=$(curl -s https://cdn.kernel.org/pub/linux/kernel/ | grep -o 'v[0-9]\+\.[0-9a-zA-Z]\+/' | sed 's/\/\s*//' | sort -t. -k2,2V -k3,3V -k4,4V | tail -n 1 | sed 's/v//')
          fi
          if [ "$KVER" == "latest" ]; then
            KVER=$(curl -s https://cdn.kernel.org/pub/linux/kernel/v$KSER/ | grep -o 'linux-[0-9]\+\.[0-9]\+\.[0-9]\+\.tar\.xz' | sort -t- -k2,2n -k3,3n -k4,4n | tail -n 1 | sed 's/linux-\(.*\)\.tar\.xz/\1/')
          fi
          echo "https://cdn.kernel.org/pub/linux/kernel/v$KSER/linux-$KVER.tar.xz"
          curl -s https://cdn.kernel.org/pub/linux/kernel/v$KSER/linux-$KVER.tar.xz | tar -C kernel --strip-components=1 -xJ
          make -C kernel CC=${CC:=gcc} defconfig
          make -C kernel CC=${CC:=gcc} modules_prepare
      - name: Build
        run: |
          make -C mrmShared/linux CC=${CC:=gcc} KERNELDIR="$PWD/kernel"

  host:
    name: With VM host
    runs-on: ubuntu-20.04
    steps:
      - uses: actions/checkout@v2
      - name: Info
        run: |
          uname -a
          gcc --version
      - name: Deps
        run: |
          sudo apt-get update
          sudo apt-get -y install linux-headers-`uname -r`
      - name: Build
        run: make -C mrmShared/linux
      - name: Install/Load
        run: |
          sudo make -C mrmShared/linux modules_install
          sudo depmod -a
          sudo modprobe mrf
          sudo dmesg | tail -n 100