toolchain_build.yml

name: Build toolchains

on:
  push:
    branches:
      - master
    tags:
      - "*"
  pull_request:
    branches:
      - master

env:
  ARTIFACT_STAGING_DIR: artifact

jobs:
  build:
    strategy:
      matrix:
        include:
          - name: rv32imcb
            display_name: Toolchains targeting Ibex with bit-manipulation extensions
            target: riscv32-unknown-elf
            output_dir: /tools/riscv
            march: rv32imc_zba_zbb_zbc_zbs
            mabi: ilp32
            mcmodel: medany
          - name: rv64imac
            display_name: GCC and Clang/LLVM toolchains targeting RV64IMAC (Muntjac)
            target: riscv64-unknown-elf
            output_dir: /tools/riscv
            march: rv64imac
            mabi: lp64
            mcmodel: medany
#         - name: multilib-baremetal
#           display_name: RV64 GCC (Multilib Baremetal)
#           target: riscv64-unknown-elf
#           output_dir: /opt/riscv-baremetal-toolchain
#         - name: multilib-linux
#           display_name: RV64 GCC (Multilib Linux)
#           target: riscv64-unknown-linux-gnu
#           output_dir: /opt/riscv-linux-toolchain

    name: ${{ matrix.display_name }}
    runs-on: ubuntu-latest
    # This is a CentOS 7 based image
    container: quay.io/pypa/manylinux2014_x86_64
    timeout-minutes: 360

    steps:
      # This uses checkout v3 instead of v4 because GitHub actions's nodejs 20 currently does not work on CentOS 7.
      - uses: actions/checkout@v3

      - name: Setup environment
        run: |
          echo ::group::Install dependencies
          ./prepare-centos-7.sh
          echo ::endgroup::

          echo ::group::Install crosstool-ng
          ./install-crosstool-ng.sh
          echo ::endgroup::

          echo Preparing toolchain destination directory...
          sudo mkdir -p /tools/riscv
          sudo chmod 0777 /tools/riscv

          echo ::group::Set the release tag env var
          echo "RELEASE_TAG=$(./release_tag.sh)" >> "$GITHUB_ENV"
          echo ::endgroup::

          echo Creating artifact staging directory...
          mkdir "$ARTIFACT_STAGING_DIR"

      - name: Build GCC toolchain
        run: |
          ./build-gcc-with-args.sh \
            "lowrisc-toolchain-gcc-${{ matrix.name }}" \
            "${{ matrix.target }}" \
            "${{ matrix.output_dir }}" \
            "${{ matrix.march }}" \
            "${{ matrix.mabi}}" \
            "${{ matrix.mcmodel }}" \
            "${{ matrix.cflags }}"

      - name: Build Clang toolchain
        run: |
          ./build-clang-with-args.sh \
            "lowrisc-toolchain-${{ matrix.name }}" \
            "${{ matrix.target }}" \
            "${{ matrix.output_dir }}" \
            "${{ matrix.march }}" \
            "${{ matrix.mabi}}" \
            "${{ matrix.mcmodel }}" \
            "${{ matrix.cflags }}"

      - uses: actions/upload-artifact@v3
        with:
          name: ${{ matrix.name }}-toolchains
          path: ${{ env.ARTIFACT_STAGING_DIR }}

      - name: Check tarballs
        run: |
          set -e
          for f in "${ARTIFACT_STAGING_DIR}"/*.tar.xz; do
            ./check-tarball.sh "$f"
          done

      - name: Release
        if: github.ref_type == 'tag'
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          # Create the release if it doesn't already exist.
          gh release create "$RELEASE_TAG" --prerelease || echo "release exists"
          # Upload this job's artifacts.
          gh release upload "$RELEASE_TAG" --clobber \
            "${ARTIFACT_STAGING_DIR}/lowrisc-toolchain-${{ matrix.name }}-${RELEASE_TAG}.tar.xz" \
            "${ARTIFACT_STAGING_DIR}/lowrisc-toolchain-gcc-${{ matrix.name }}-${RELEASE_TAG}.tar.xz"