make.yml

name: Make kernel bs patch

on:
  workflow_dispatch:
    inputs:
      pat-address:
        description: 'Pat file URL'
        required: true
        default: 'https://global.download.synology.com/download/DSM/release/7.0.1/42218/DSM_DS918%2B_42218.pat'
      toolchain:
        description: 'DSM toolchain URL for repack zImage'
        required: true
        default: 'https://sourceforge.net/projects/dsgpl/files/Tool%20Chain/DSM%207.0.0%20Tool%20Chains/Intel%20x86%20Linux%204.4.180%20%28Apollolake%29/apollolake-gcc750_glibc226_x86_64-GPL.txz'
      linux-src:
        description: 'Linux kernel source URL for repack zImage'
        required: true
        default: 'https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-4.4.180.tar.xz'

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Bulid
        id: bulid-bsp
        run: |
          patfile=$(basename ${{github.event.inputs.pat-address}} | while read; do echo -e ${REPLY//%/\\x}; done)
          echo "::set-output name=patfile::$patfile"
          # install bsdiff
          sudo apt-get install -y bsdiff

          #ls -al $GITHUB_WORKSPACE/
          mkdir /opt/build
          mkdir /opt/dist
          cd /opt/build
          curl -L ${{github.event.inputs.pat-address}} -o ds.pat
          curl -L ${{github.event.inputs.toolchain}} -o toolchain.txz
          curl -L ${{github.event.inputs.linux-src}} -o linux.tar.xz
          mkdir pat
          tar xf ds.pat -C pat
          # is update_pack
          if [ ! -f "pat/zImage" ]; then
            cd pat
            ar x $(ls flashupdate*)
            tar xf data.tar.xz
            cd ..
          fi
          mkdir toolchain
          tar xf toolchain.txz -C toolchain
          mkdir linux-src
          tar xf linux.tar.xz --strip-components 1 -C linux-src

          # extract vmlinux
          ./linux-src/scripts/extract-vmlinux pat/zImage > vmlinux
          # sha256
          sha256sum ds.pat >> checksum.sha256
          sha256sum pat/zImage >> checksum.sha256
          sha256sum pat/rd.gz >> checksum.sha256
          sha256sum vmlinux >> checksum.sha256
          # patch vmlinux
          # vmlinux_mod.bin
          curl -L https://github.com/jumkey/dsm-research/raw/master/tools/common.php -o common.php
          curl -L https://github.com/jumkey/dsm-research/raw/master/tools/patch-ramdisk-check.php -o patch-ramdisk-check.php
          curl -L https://github.com/jumkey/dsm-research/raw/master/tools/patch-boot_params-check.php -o patch-boot_params-check.php
          php patch-boot_params-check.php vmlinux vmlinux-mod
          php patch-ramdisk-check.php vmlinux-mod vmlinux_mod.bin

          git clone https://github.com/kiler129/recreate-zImage.git
          chmod +x recreate-zImage/rebuild_kernel.sh
          cd linux-src
          # ---------- make zImage_mod
          # Make file more anonymous
          export KBUILD_BUILD_TIMESTAMP="1970/1/1 00:00:00"
          export KBUILD_BUILD_USER="root"
          export KBUILD_BUILD_HOST="localhost"
          export KBUILD_BUILD_VERSION=0

          export ARCH=x86_64
          export CROSS_COMPILE=/opt/build/toolchain/x86_64-pc-linux-gnu/bin/x86_64-pc-linux-gnu-
          #make olddefconfig
          make defconfig
          # change to lzma
          sed -i 's/CONFIG_KERNEL_GZIP=y/# CONFIG_KERNEL_GZIP is not set/' .config
          sed -i 's/# CONFIG_KERNEL_LZMA is not set/CONFIG_KERNEL_LZMA=y/' .config
          << see_below
          make clean
          sed -i 's/bzImage: vmlinux/bzImage: /' arch/x86/Makefile
          make vmlinux -j4 || true # make some *.o inspire by UnknowO
          cp ../vmlinux_mod.bin vmlinux # vmlinux_mod.bin is already stripped of debugging and comments, strippe again should be ok
          make bzImage
          sed -i 's/bzImage: /bzImage: vmlinux/' arch/x86/Makefile
          cp arch/x86/boot/bzImage ../zImage_mod
          make clean
          see_below
          # for DS3615xs
          #sed -i 's/   -std=gnu89$/   -std=gnu89 $(call cc-option,-fno-PIE)/' Makefile
          sed -i 's/ ld -/ ${CROSS_COMPILE}ld -/' ../recreate-zImage/rebuild_kernel.sh
          sed -i 's/(ld -/(${CROSS_COMPILE}ld -/' ../recreate-zImage/rebuild_kernel.sh
          sed -i 's/ gcc / ${CROSS_COMPILE}gcc /' ../recreate-zImage/rebuild_kernel.sh
          sed -i 's/ nm / ${CROSS_COMPILE}nm /' ../recreate-zImage/rebuild_kernel.sh
          sed -i 's/ objcopy / ${CROSS_COMPILE}objcopy /' ../recreate-zImage/rebuild_kernel.sh
          sed -i 's/(objdump /(${CROSS_COMPILE}objdump /' ../recreate-zImage/rebuild_kernel.sh
          sed -i 's/ readelf / ${CROSS_COMPILE}readelf /' ../recreate-zImage/rebuild_kernel.sh
          ../recreate-zImage/rebuild_kernel.sh $PWD/../linux-src ../vmlinux_mod.bin ../zImage_mod
          # ----------
          cd ..
          bsdiff pat/zImage zImage_mod diff.bsp

          echo '---copy file---'
          cp vmlinux /opt/dist
          cp vmlinux_mod.bin /opt/dist
          cp diff.bsp /opt/dist
          cp checksum.sha256 /opt/dist
          echo '---END---'
      - name: Upload
        uses: actions/upload-artifact@v2
        with:
          name: kernel bs patch for ${{ steps.bulid-bsp.outputs.patfile }}
          path: /opt/dist