nixos-riscv/pkgs/spec-cpu/mini.nix

{
  stdenv
, spec-cpu
, spec-cpu-tools
, specinvoke
, speclaunch
}:

stdenv.mkDerivation rec {
  pname = "spec-cpu-mini";
  version = spec-cpu.version;
  src = null;
  unpackPhase = "true";

  # Select only a subset of the benchmarks:
  # https://www.spec.org/cpu2017/Docs/#benchdocs
  benchList = [
    # -- SPECspeed 2017 Integer --
    "600.perlbench_s"
    "602.gcc_s"
    "605.mcf_s"
    "620.omnetpp_s"
    #"623.xalancbmk_s" # Big
    #"625.x264_s" # Big
    #"631.deepsjeng_s" # Requires 7 GiB of RAM
    "641.leela_s"
    "648.exchange2_s"
    # "657.xz_s" # Runs out of memory with 700 MiB of RAM
  ];

  dontConfigure = true;
  buildPhase = ''
    pwd
    mkdir -p benchspec/CPU
    for bench in $benchList; do
      cp -r ${spec-cpu}/benchspec/CPU/$bench benchspec/CPU/
    done

    # Make writable
    chmod -R +w benchspec

    # Remove environment
    find benchspec -name '*.cmd' | xargs sed -i '/^-E/d'
    # Remove compare script as it refers to spec-cpu-tools
    find benchspec -name 'compare.cmd' -delete
  '';
  installPhase = ''
    pwd
    mkdir -p $out
    cp -r benchspec/ $out
    mkdir -p $out/bin
    echo -e "#!$SHELL\necho $out" > $out/bin/spec-cpu-mini
    chmod +x $out/bin/spec-cpu-mini
    cp ${specinvoke}/bin/specinvoke $out/bin
    cp ${speclaunch}/bin/speclaunch $out/bin
  '';
  enableParallelBuilding = false;
  hardeningDisable = [ "all" ];
  dontStrip = true;
}