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nixpkgs/pkgs/os-specific/linux/microcode/intel.nix

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{ stdenv, fetchurl, libarchive }:
stdenv.mkDerivation rec {
name = "microcode-intel-${version}";
version = "20150121";
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src = fetchurl {
url = "http://downloadmirror.intel.com/24661/eng/microcode-${version}.tgz";
sha256 = "1cznv3f25cxkwxdc930ab0ifvq0c76fryppadi4p26a2pf9knd93";
};
buildInputs = [ libarchive ];
sourceRoot = ".";
buildPhase = ''
gcc -O2 -Wall -o intel-microcode2ucode ${./intel-microcode2ucode.c}
./intel-microcode2ucode microcode.dat
'';
installPhase = ''
mkdir -p $out kernel/x86/microcode
mv microcode.bin kernel/x86/microcode/GenuineIntel.bin
echo kernel/x86/microcode/GenuineIntel.bin | bsdcpio -o -H newc -R 0:0 > $out/intel-ucode.img
'';
meta = with stdenv.lib; {
homepage = http://www.intel.com/;
description = "Microcode for Intel processors";
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license = licenses.unfreeRedistributableFirmware;
maintainers = with maintainers; [ wkennington ];
platforms = platforms.linux;
};
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}