name: Build

on:
  push:
    branches:
      - master

jobs:
  build-amd64-iso:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Build kernel (amd64)
        run: make -f Makefile.starkernel ARCH=amd64
      - name: Pack El Torito ISO (amd64)
        run: |
          set -e
          BUILD_DIR=build/amd64/kernel
          mkdir -p "$BUILD_DIR/iso"
          dd if=/dev/zero of="$BUILD_DIR/iso/efi.img" bs=512 count=8192
          mformat -i "$BUILD_DIR/iso/efi.img" ::
          mmd     -i "$BUILD_DIR/iso/efi.img" ::/EFI
          mmd     -i "$BUILD_DIR/iso/efi.img" ::/EFI/BOOT
          mcopy   -i "$BUILD_DIR/iso/efi.img" "$BUILD_DIR/starkernel_loader.efi" ::/EFI/BOOT/BOOTX64.EFI
          xorriso -as mkisofs -r -J -e efi.img -no-emul-boot \
            -o "$BUILD_DIR/starkernel.iso" "$BUILD_DIR/iso"
      - uses: actions/upload-artifact@v3
        with:
          name: lithosananke-amd64-iso
          path: build/amd64/kernel/starkernel.iso

  build-aarch64-iso:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Build kernel (aarch64)
        env:
          PATH: /usr/lib/llvm-18/bin:/usr/bin:/bin
        run: make -f Makefile.starkernel ARCH=aarch64
      - name: Pack El Torito ISO (aarch64)
        run: |
          set -e
          BUILD_DIR=build/aarch64/kernel
          mkdir -p "$BUILD_DIR/iso/EFI/BOOT"
          cp "$BUILD_DIR/starkernel_loader.efi" "$BUILD_DIR/iso/EFI/BOOT/BOOTAA64.EFI"
          printf "FS0:\\\\EFI\\\\BOOT\\\\BOOTAA64.EFI\r\n" > "$BUILD_DIR/iso/startup.nsh"
          dd if=/dev/zero of="$BUILD_DIR/iso/efi.img" bs=512 count=8192
          mformat -i "$BUILD_DIR/iso/efi.img" ::
          mmd     -i "$BUILD_DIR/iso/efi.img" ::/EFI
          mmd     -i "$BUILD_DIR/iso/efi.img" ::/EFI/BOOT
          mcopy   -i "$BUILD_DIR/iso/efi.img" "$BUILD_DIR/starkernel_loader.efi" ::/EFI/BOOT/BOOTAA64.EFI
          xorriso -as mkisofs -r -J -e efi.img -no-emul-boot \
            -o "$BUILD_DIR/starkernel.iso" "$BUILD_DIR/iso"
      - uses: actions/upload-artifact@v3
        with:
          name: lithosananke-aarch64-iso
          path: build/aarch64/kernel/starkernel.iso

  build-riscv64-img:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Build kernel (riscv64)
        run: make -f Makefile.starkernel ARCH=riscv64
      - name: Pack GPT/FAT32 disk image (riscv64)
        # El Torito ISO and -bios QEMU mode don't work on riscv64 virt,
        # so this arch ships a raw GPT disk image instead of an ISO
        # (same distinction Makefile.starkernel's own qemu target makes).
        run: |
          set -e
          BUILD_DIR=build/riscv64/kernel
          DISK="$BUILD_DIR/starkernel_rv64.img"
          dd if=/dev/zero of="$DISK" bs=1M count=64
          sgdisk -n 1:2048:131038 -t 1:ef00 -c 1:"EFI System" "$DISK"
          dd if=/dev/zero of="$BUILD_DIR/esp_rv64.img" bs=512 count=128991
          mkfs.fat -F 32 -n "ESP" "$BUILD_DIR/esp_rv64.img"
          mmd   -i "$BUILD_DIR/esp_rv64.img" ::/EFI
          mmd   -i "$BUILD_DIR/esp_rv64.img" ::/EFI/BOOT
          mcopy -i "$BUILD_DIR/esp_rv64.img" "$BUILD_DIR/starkernel_loader.efi" ::/EFI/BOOT/BOOTRISCV64.EFI
          mcopy -i "$BUILD_DIR/esp_rv64.img" "$BUILD_DIR/starkernel_kernel.elf" ::/kernel.elf
          printf 'FS0:\\EFI\\BOOT\\BOOTRISCV64.EFI\r\n' > "$BUILD_DIR/startup.nsh"
          mcopy -i "$BUILD_DIR/esp_rv64.img" "$BUILD_DIR/startup.nsh" ::/startup.nsh
          dd if="$BUILD_DIR/esp_rv64.img" of="$DISK" bs=512 seek=2048 conv=notrunc
      - uses: actions/upload-artifact@v3
        with:
          name: lithosananke-riscv64-img
          path: build/riscv64/kernel/starkernel_rv64.img