interactive-debugging.yml

# docs: https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions

name: Interactive debugging

on:
  push:
    branches: ["main", "dev-goog", "dev-msft", "dev-public"]
  pull_request:

  workflow_dispatch:

jobs:
  build_verilator:
    name: 
    runs-on: ubuntu-22.04

    env:
      CARGO_INCREMENTAL: 0
      SCCACHE_VERSION: 0.3.3
      # TODO: To update to 5.006, clean up lint errors
      VERILATOR_VERSION: v5.012
      SCCACHE_GHA_CACHE_TO: sccache-verilator-10000
      SCCACHE_GHA_CACHE_FROM: sccache-verilator-
      # Change this to a new random value if you suspect the cache is corrupted
      SCCACHE_C_CUSTOM_CACHE_BUSTER: f3e6951f0c1d

    steps:
      - name: Restore sccache binary
        uses: actions/cache/restore@v3
        id: sccache_bin_restore
        with:
          path: ~/.cargo/bin/sccache
          key: sccache-bin-${{ env.SCCACHE_VERSION }}-${{ env.SCCACHE_C_CUSTOM_CACHE_BUSTER }}

      - name: Install sccache
        if: steps.sccache_bin_restore.outputs.cache-hit != 'true'
        run: |
          cargo install sccache --version ${SCCACHE_VERSION} --no-default-features --features=gha

      - name: Save sccache binary
        uses: actions/cache/save@v3
        if: steps.sccache_bin_restore.outputs.cache-hit != 'true'
        with:
          path: ~/.cargo/bin/sccache
          key: sccache-bin-${{ env.SCCACHE_VERSION }}-${{ env.SCCACHE_C_CUSTOM_CACHE_BUSTER }}

      - name: Configure sccache
        uses: actions/github-script@v6
        with:
          script: |
            core.exportVariable('ACTIONS_CACHE_URL', process.env.ACTIONS_CACHE_URL || '');
            core.exportVariable('ACTIONS_RUNTIME_TOKEN', process.env.ACTIONS_RUNTIME_TOKEN || '');

      - name: Restore verilator dir
        uses: actions/cache/restore@v3
        id: verilator_restore
        with:
          path: /opt/verilator
          key: verilator-${{ env.VERILATOR_VERSION }}-${{ env.SCCACHE_C_CUSTOM_CACHE_BUSTER }}

      - name: Install verilator
        if: steps.verilator_restore.outputs.cache-hit != 'true'
        run: |
          sudo apt-get install flex bison libfl2 libfl-dev help2man
          cd /tmp/
          git clone -b "${VERILATOR_VERSION}" https://github.com/verilator/verilator
          cd verilator
          autoconf
          ./configure --prefix=/opt/verilator CC="sccache gcc" CXX="sccache g++"
          make -j6
          sudo make install

      - name: Save verilator dir
        uses: actions/cache/save@v3
        if: steps.verilator_restore.outputs.cache-hit != 'true'
        with:
          path: /opt/verilator
          key: verilator-${{ env.VERILATOR_VERSION }}-${{ env.SCCACHE_C_CUSTOM_CACHE_BUSTER }}

      - name: Pack Verilator
        run: |
          cd /opt && tar -czvf verilator.tar.gz verilator/

      - name: Store Verilator binaries
        uses: actions/upload-artifact@v3
        with:
          name: verilator
          path: /opt/*.tar.gz
          retention-days: 1

  build_openocd:
    name: 
    runs-on: ubuntu-22.04

    env:
      CARGO_INCREMENTAL: 0
      SCCACHE_VERSION: 0.3.3
      # A custom fork is needed to allow bypassing core examination and accessing
      # peripherals regardless of core state.
      OPENOCD_REPO: https://github.com/antmicro/openocd
      OPENOCD_VERSION: riscv-nohalt
      SCCACHE_GHA_CACHE_TO: sccache-openocd-10000
      SCCACHE_GHA_CACHE_FROM: sccache-openocd-
      # Change this to a new random value if you suspect the cache is corrupted
      SCCACHE_C_CUSTOM_CACHE_BUSTER: f3e6951f0c1e

    steps:
      - name: Restore sccache binary
        uses: actions/cache/restore@v3
        id: sccache_bin_restore
        with:
          path: ~/.cargo/bin/sccache
          key: sccache-bin-${{ env.SCCACHE_VERSION }}-${{ env.SCCACHE_C_CUSTOM_CACHE_BUSTER }}

      - name: Install sccache
        if: steps.sccache_bin_restore.outputs.cache-hit != 'true'
        run: |
          cargo install sccache --version ${SCCACHE_VERSION} --no-default-features --features=gha

      - name: Save sccache binary
        uses: actions/cache/save@v3
        if: steps.sccache_bin_restore.outputs.cache-hit != 'true'
        with:
          path: ~/.cargo/bin/sccache
          key: sccache-bin-${{ env.SCCACHE_VERSION }}-${{ env.SCCACHE_C_CUSTOM_CACHE_BUSTER }}

      - name: Configure sccache
        uses: actions/github-script@v6
        with:
          script: |
            core.exportVariable('ACTIONS_CACHE_URL', process.env.ACTIONS_CACHE_URL || '');
            core.exportVariable('ACTIONS_RUNTIME_TOKEN', process.env.ACTIONS_RUNTIME_TOKEN || '');

      - name: Restore OpenOCD dir
        uses: actions/cache/restore@v3
        id: openocd_restore
        with:
          path: /opt/openocd
          key: openocd-${{ env.OPENOCD_VERSION }}-${{ env.SCCACHE_C_CUSTOM_CACHE_BUSTER }}

      - name: Install OpenOCD
        if: steps.openocd_restore.outputs.cache-hit != 'true'
        run: |
          sudo apt-get install make libtool pkg-config autoconf automake texinfo
          cd /tmp/
          git clone -b "${OPENOCD_VERSION}" https://github.com/antmicro/openocd
          cd openocd
          ./bootstrap
          ./configure --prefix=/opt/openocd --enable-remote-bitbang \
            CC="sccache gcc" CXX="sccache g++" \
            CFLAGS="-Wno-error=misleading-indentation -Wno-error=stringop-overflow"
          make -j6
          sudo make install

      - name: Save OpenOCD dir
        uses: actions/cache/save@v3
        if: steps.openocd_restore.outputs.cache-hit != 'true'
        with:
          path: /opt/openocd
          key: openocd-${{ env.OPENOCD_VERSION }}-${{ env.SCCACHE_C_CUSTOM_CACHE_BUSTER }}

      - name: Pack OpenOCD
        run: |
          cd /opt && tar -czvf openocd.tar.gz openocd/

      - name: Store OpenOCD binaries
        uses: actions/upload-artifact@v3
        with:
          name: openocd
          path: /opt/*.tar.gz
          retention-days: 1

  gdb_tests:
    name: Run GDB debugging tests
    runs-on: ubuntu-22.04
    needs: [build_verilator, build_openocd]

    env:
      CARGO_INCREMENTAL: 0
      PKG_CONFIG_PATH: /opt/verilator/share/pkgconfig
      DEBIAN_FRONTEND: "noninteractive"

    steps:

      - name: Install Risc V Toolchain
        run: |
          # Building from source takes around 6.65 GB of disk and download size
          wget -O toolchain.tar.gz https://github.com/stnolting/riscv-gcc-prebuilt/releases/download/rv64imc-3.0.0/riscv64-unknown-elf.gcc-12.1.0.tar.gz
          mkdir /opt/riscv
          tar -xzf toolchain.tar.gz -C /opt/riscv/

      - name: Install dependencies
        run: |
          # For some reason GDB requires libpython3.8.so
          sudo add-apt-repository ppa:deadsnakes/ppa -y
          sudo apt update -qy && sudo apt install -qy --no-install-recommends \
            libpython3.8

      - name: Download Verilator binaries
        uses: actions/download-artifact@v3
        with:
          name: verilator
          path: /opt

      - name: Download OpenOCD binaries
        uses: actions/download-artifact@v3
        with:
          name: openocd
          path: /opt

      - name: Unpack binaries
        run: |
          pushd /opt
            tar -zxvf verilator.tar.gz
            tar -zxvf openocd.tar.gz
          popd

      - name: Setup path
        run: |
          echo /opt/riscv/bin:/opt/verilator/bin:/opt/openocd/bin >> $GITHUB_PATH

      - name: Clone repository
        uses: actions/checkout@v3
        with:
          submodules: 'true'

      - name: Build Verilated simulation
        run: |
          export CALIPTRA_ROOT=$(pwd)
          mkdir run
          make -C run -f ${CALIPTRA_ROOT}/tools/scripts/Makefile verilator-build TESTNAME=infinite_loop DEBUG_UNLOCKED=1 \
            OBJCACHE="" CC=gcc CXX=g++ LINK=g++
          make -C run -f ${CALIPTRA_ROOT}/tools/scripts/Makefile program.hex TESTNAME=infinite_loop

      - name: Test core register access
        run: |
          export CALIPTRA_ROOT=$(pwd)
          cd run
          ${CALIPTRA_ROOT}/.github/scripts/gdb_test.sh \
            /bin/bash -c 'cd ${CALIPTRA_ROOT}/src/integration/test_suites/infinite_loop && ./dump_and_compare.sh'

      - name: Test memory access
        run: |
          export CALIPTRA_ROOT=$(pwd)
          cd run
          ${CALIPTRA_ROOT}/.github/scripts/gdb_test.sh \
            /bin/bash -c 'cd ${CALIPTRA_ROOT}/src/integration/test_suites/infinite_loop && ./mem_access.sh'

      - name: Test peripheral access
        run: |
          export CALIPTRA_ROOT=$(pwd)
          cd run
          ${CALIPTRA_ROOT}/.github/scripts/gdb_test.sh \
            /bin/bash -c 'cd ${CALIPTRA_ROOT}/src/integration/test_suites/infinite_loop && ./peripheral_access.sh'

  openocd_tests:
    name: Run OpenOCD debugging tests
    runs-on: ubuntu-22.04
    needs: [build_verilator, build_openocd]

    env:
      CARGO_INCREMENTAL: 0
      PKG_CONFIG_PATH: /opt/verilator/share/pkgconfig
      DEBIAN_FRONTEND: "noninteractive"

    steps:

      - name: Install Risc V Toolchain
        run: |
          # Building from source takes around 6.65 GB of disk and download size
          wget -O toolchain.tar.gz https://github.com/stnolting/riscv-gcc-prebuilt/releases/download/rv64imc-3.0.0/riscv64-unknown-elf.gcc-12.1.0.tar.gz
          mkdir /opt/riscv
          tar -xzf toolchain.tar.gz -C /opt/riscv/

      - name: Download Verilator binaries
        uses: actions/download-artifact@v3
        with:
          name: verilator
          path: /opt

      - name: Download OpenOCD binaries
        uses: actions/download-artifact@v3
        with:
          name: openocd
          path: /opt

      - name: Unpack binaries
        run: |
          pushd /opt
            tar -zxvf verilator.tar.gz
            tar -zxvf openocd.tar.gz
          popd

      - name: Setup path
        run: |
          echo /opt/riscv/bin:/opt/verilator/bin:/opt/openocd/bin >> $GITHUB_PATH

      - name: Clone repository
        uses: actions/checkout@v3
        with:
          submodules: 'true'

      - name: Build Verilated simulation
        run: |
          export CALIPTRA_ROOT=$(pwd)
          mkdir run
          make -C run -f ${CALIPTRA_ROOT}/tools/scripts/Makefile verilator-build TESTNAME=infinite_loop DEBUG_UNLOCKED=1 FORCE_CPU_RESET=1 \
            OBJCACHE="" CC=gcc CXX=g++ LINK=g++
          make -C run -f ${CALIPTRA_ROOT}/tools/scripts/Makefile program.hex TESTNAME=infinite_loop

      - name: Test peripheral access with core in reset
        run: |
          export CALIPTRA_ROOT=$(pwd)
          cd run
          ${CALIPTRA_ROOT}/.github/scripts/openocd_test.sh \
            -f board/caliptra-verilator-rst.cfg \
            -f ${CALIPTRA_ROOT}/src/integration/test_suites/infinite_loop/peripheral_access.tcl