liminix/kernel/uimage.nix

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{
lzma
, stdenv
, ubootTools
} :
let
objcopy = "${stdenv.cc.bintools.targetPrefix}objcopy";
in {
vmlinux
# , commandLine
# , fdt ? null
, entryPoint
# , extraName ? "" # e.g. socFamily
, loadAddress
} :
# patchDtbCommand = if (fdt != null) then ''
# ( cat vmlinux.stripped ${fdt} > vmlinux.tmp ) && mv vmlinux.tmp vmlinux.stripped
# '' else ''
# echo patch-cmdline vmlinux.stripped '${commandLine}'
# patch-cmdline vmlinux.stripped '${commandLine}'
# echo
# '';
stdenv.mkDerivation {
name = "kernel.image";
phases = [ "buildPhase" "installPhase" ];
nativeBuildInputs = [
# patchImage
lzma
stdenv.cc
ubootTools
];
buildPhase = ''
${objcopy} -O binary -R .reginfo -R .notes -R .note -R .comment -R .mdebug -R .note.gnu.build-id -S ${vmlinux} vmlinux.stripped
# {patchDtbCommand}
rm -f vmlinux.stripped.lzma
lzma -k -z vmlinux.stripped
mkimage -A mips -O linux -T kernel -C lzma -a ${loadAddress} -e ${entryPoint} -n 'MIPS Liminix Linux ' -d vmlinux.stripped.lzma kernel.image
'';
installPhase = ''
cp kernel.image $out
'';
}