build-centos7.yaml

name: Build for CentOS 7

on:
  push:
    branches:
      - centos7-build

jobs:
  build:
    runs-on: ubuntu-22.04
    container:
      image: centos:7

    steps:
      - name: Update and install build tools
        # Add python-devel to support python in gdb.
        # actions/checkout@v3 requires git >= 2.18
        run: |
          yum -y update
          yum -y install \
            centos-release-scl \
            https://repo.ius.io/ius-release-el7.rpm \
            https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
          yum -y install \
            autoconf automake python3 libmpc-devel mpfr-devel gmp-devel gawk \
            bison flex texinfo patchutils zlib-devel expat-devel \
            python-devel \
            ninja-build dtc glib2-devel \
            cmake3 devtoolset-11-gcc devtoolset-11-gcc-c++ devtoolset-11-make \
            git236-core
          alternatives --install /usr/local/bin/cmake cmake /usr/bin/cmake3 20 \
            --slave /usr/local/bin/ctest ctest /usr/bin/ctest3 \
            --slave /usr/local/bin/cpack cpack /usr/bin/cpack3 \
            --slave /usr/local/bin/ccmake ccmake /usr/bin/ccmake3 \
            --family cmake

      - uses: actions/checkout@v3

      - name: Checkout submodules
        run: |
          git config --global --add safe.directory ${GITHUB_WORKSPACE}
          git submodule init binutils gcc gdb glibc newlib qemu spike
          git submodule update --recursive --progress --depth=1 -j 0

      - name: Configure Newlib toolchain
        run: |
          scl enable devtoolset-11 -- \
            ./configure --prefix=/opt/riscv --enable-libsanitizer --with-cmodel=medany

      - name: Build Newlib toolchain
        run: scl enable devtoolset-11 -- make -j $(nproc)

      - name: Build Spike
        run: scl enable devtoolset-11 -- make -j $(nproc) build-sim SIM=spike

      - name: Clean temporary files to free up space
        run: make clean
  
      - name: Configure Linux toolchain
        run: |
          scl enable devtoolset-11 -- \
            ./configure --prefix=/opt/riscv --enable-llvm --with-cmodel=medany

      - name: Build Linux toolchain
        run: scl enable devtoolset-11 -- make -j $(nproc) linux

      - name: Clean temporary files to free up space
        run: make clean

      - name: Create tarball
        # WARNING each xz thread consumes nearly 1 GB of memory
        run: XZOPT=-T0 tar -cJvf rv-gnu-toolchain-centos7.txz -C /opt/ riscv/

      - uses: actions/upload-artifact@v3
        with:
          name: toolchain-for-centos7
          path: rv-gnu-toolchain-centos7.txz