m68k.yml

# How to chroot with qemu into a Debian created with debootstrap: https://unix.stackexchange.com/questions/41889/how-can-i-chroot-into-a-filesystem-with-a-different-architechture
# Commands need to be run inside qemu-m68k-static, e.g. qemu-m68k-static /usr/bin/ls.
#
# TODO: check if qemu-user-static-binfmt is needed (perhaps to run some tests since it probably calls exec).

name: m68k CI

on:
  - push
  - pull_request

permissions:
  contents: read

env:
  # Enable backtraces for easier debugging
  RUST_BACKTRACE: 1

jobs:
  build:
    runs-on: ubuntu-22.04

    strategy:
      fail-fast: false
      matrix:
        commands: [
          "--mini-tests",
          "--std-tests",
          "--test-libcore",
          "--extended-rand-tests",
          "--extended-regex-example-tests",
          "--extended-regex-tests",
          "--test-successful-rustc --nb-parts 2 --current-part 0",
          "--test-successful-rustc --nb-parts 2 --current-part 1",
          "--test-failing-rustc",
        ]

    steps:
    - name: Install packages
      run: |
        sudo apt-get update
        sudo apt-get install qemu qemu-user-static

    - uses: actions/checkout@v3

    - uses: actions/checkout@v3
      with:
        repository: llvm/llvm-project
        path: llvm

    - name: Download GCC artifact
      uses: dawidd6/action-download-artifact@v2
      with:
          workflow: m68k.yml
          name: gcc-m68k-13
          repo: cross-cg-gcc-tools/cross-gcc
          branch: master
          event: push

    - name: Download VM artifact
      uses: dawidd6/action-download-artifact@v2
      with:
          workflow: m68k.yml
          name: debian-m68k
          repo: cross-cg-gcc-tools/vms
          branch: master
          event: push

    - name: Setup path to libgccjit
      run: |
          sudo dpkg -i gcc-m68k-13.deb
          echo /usr/lib/ > gcc_path

    - name: Set env
      run: |
        echo "LIBRARY_PATH=$(cat gcc_path)" >> $GITHUB_ENV
        echo "LD_LIBRARY_PATH=$(cat gcc_path)" >> $GITHUB_ENV
        echo "workspace="$GITHUB_WORKSPACE >> $GITHUB_ENV

    - name: Set RUST_COMPILER_RT_ROOT
      run: echo "RUST_COMPILER_RT_ROOT="${{ env.workspace }}/llvm/compiler-rt >> $GITHUB_ENV

    - name: Cache cargo installed crates
      uses: actions/cache@v3
      with:
        path: ~/.cargo/bin
        key: cargo-installed-crates2-ubuntu-latest

    - name: Cache cargo registry
      uses: actions/cache@v3
      with:
        path: ~/.cargo/registry
        key: ${{ runner.os }}-cargo-registry2-${{ hashFiles('**/Cargo.lock') }}

    - name: Cache cargo index
      uses: actions/cache@v3
      with:
        path: ~/.cargo/git
        key: ${{ runner.os }}-cargo-index-${{ hashFiles('**/Cargo.lock') }}

    - name: Cache cargo target dir
      uses: actions/cache@v3
      with:
        path: target
        key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('rust-toolchain') }}

    #- name: Cache rust repository
      ## We only clone the rust repository for rustc tests
      #if: ${{ contains(matrix.commands, 'rustc') }}
      #uses: actions/cache@v3
      #id: cache-rust-repository
      #with:
        #path: rust
        #key: ${{ runner.os }}-packages-${{ hashFiles('rust/.git/HEAD') }}

    - name: Test build (TODO REMOVE)
      run: |
        cat > main.c <<EOF
        #include <stdio.h>
        int main(void) {
            printf("Hello, world!");
        }
        EOF
        mkdir vm
        sudo mount debian-m68k.img vm
        m68k-unknown-linux-gnu-gcc main.c -o main
        sudo cp main vm/home/main
        sudo cp $(which qemu-m68k-static) vm/usr/bin/
        sudo chroot vm/ qemu-m68k-static /home/main

    - name: Test libgccjit build (TODO REMOVE)
      run: |
        export LD_LIBRARY_PATH=/usr/lib
        export LIBRARY_PATH=/usr/lib
        cd m68k-test
        cargo run
        cd ..
        sudo mv m68k-test/main-m68k vm/home/
        sudo chroot vm/ qemu-m68k-static /home/main-m68k

    - name: Build
      run: |
        ./y.sh prepare --only-libcore
        # TODO: move into prepare command under a flag --cross-patches?
        pushd build_sysroot/sysroot_src
        git am ../../cross_patches/*.patch
        popd
        ./build.sh
        cargo test
        ./clean_all.sh

    - name: Prepare dependencies
      run: |
        git config --global user.email "user@example.com"
        git config --global user.name "User"
        ./y.sh prepare

    # Compile is a separate step, as the actions-rs/cargo action supports error annotations
    - name: Compile
      uses: actions-rs/cargo@v1.0.3
      with:
        command: build
        args: --release

    - name: Add more failing tests because the sysroot is not compiled with LTO
      run: cat failing-non-lto-tests.txt >> failing-ui-tests.txt

    - name: Run tests
      run: |
        ./test.sh --release --clean --build-sysroot