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path: root/pkgs/os-specific/linux/ena/default.nix
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{ stdenv, fetchFromGitHub, kernel }:

stdenv.mkDerivation rec {
  version = "2.3.0";
  name = "ena-${version}-${kernel.version}";

  src = fetchFromGitHub {
    owner = "amzn";
    repo = "amzn-drivers";
    rev = "ena_linux_${version}";
    sha256 = "sha256-ho6yKCgYo3p50leQUCmzNO/3wqzSzs27Eash3AWBaiE=";
  };

  hardeningDisable = [ "pic" ];

  nativeBuildInputs = kernel.moduleBuildDependencies;

  # linux 3.12
  NIX_CFLAGS_COMPILE = "-Wno-error=implicit-function-declaration";

  configurePhase = ''
    cd kernel/linux/ena
    substituteInPlace Makefile --replace '/lib/modules/$(BUILD_KERNEL)' ${kernel.dev}/lib/modules/${kernel.modDirVersion}
  '';

  installPhase = ''
    strip -S ena.ko
    dest=$out/lib/modules/${kernel.modDirVersion}/misc
    mkdir -p $dest
    cp ena.ko $dest/
    xz $dest/ena.ko
  '';

  meta = with stdenv.lib; {
    description = "Amazon Elastic Network Adapter (ENA) driver for Linux";
    homepage = "https://github.com/amzn/amzn-drivers";
    license = licenses.gpl2;
    maintainers = [ maintainers.eelco ];
    platforms = platforms.linux;
  };
}