Daniel Barlow
7e2b0068e6
There is nothing in this commit except for the changes made by nix-shell -p nixfmt-rfc-style --run "nixfmt ." If this has mucked up your open branches then sorry about that. You can probably nixfmt them to match before merging
92 lines
2.3 KiB
Nix
92 lines
2.3 KiB
Nix
{
|
|
lzma,
|
|
stdenv,
|
|
ubootTools,
|
|
dtc,
|
|
lib,
|
|
}:
|
|
let
|
|
objcopy = "${stdenv.cc.bintools.targetPrefix}objcopy";
|
|
arch = stdenv.hostPlatform.linuxArch;
|
|
stripAndZip = ''
|
|
${objcopy} -O binary -R .reginfo -R .notes -R .note -R .comment -R .mdebug -R .note.gnu.build-id -S vmlinux.elf vmlinux.bin
|
|
rm -f vmlinux.bin.lzma ; lzma -k -z vmlinux.bin
|
|
'';
|
|
in
|
|
{
|
|
kernel,
|
|
commandLine,
|
|
commandLineDtbNode ? "bootargs",
|
|
entryPoint,
|
|
extraName ? "", # e.g. socFamily
|
|
loadAddress,
|
|
imageFormat,
|
|
alignment ? null,
|
|
dtb ? null,
|
|
}:
|
|
stdenv.mkDerivation {
|
|
name = "kernel.image";
|
|
phases = [
|
|
"preparePhase"
|
|
(
|
|
if commandLine != null then
|
|
assert dtb != null;
|
|
"mungeDtbPhase"
|
|
else
|
|
":"
|
|
)
|
|
(if imageFormat == "fit" then "buildPhaseFIT" else "buildPhaseUImage")
|
|
"installPhase"
|
|
];
|
|
nativeBuildInputs = [
|
|
lzma
|
|
dtc
|
|
stdenv.cc
|
|
ubootTools
|
|
];
|
|
preparePhase = ''
|
|
cp ${kernel} vmlinux.elf; chmod +w vmlinux.elf
|
|
'';
|
|
mungeDtbPhase = ''
|
|
dtc -I dtb -O dts -o tmp.dts ${dtb}
|
|
echo '/{ chosen { ${commandLineDtbNode} = ${builtins.toJSON commandLine}; }; };' >> tmp.dts
|
|
dtc -I dts -O dtb -o tmp.dtb tmp.dts
|
|
'';
|
|
|
|
buildPhaseUImage = ''
|
|
test -f tmp.dtb && ${objcopy} --update-section .appended_dtb=tmp.dtb vmlinux.elf || ${objcopy} --add-section .appended_dtb=tmp.dtb vmlinux.elf
|
|
${stripAndZip}
|
|
mkimage -A ${arch} -O linux -T kernel -C lzma -a 0x${lib.toHexString loadAddress} -e 0x${lib.toHexString entryPoint} -n '${lib.toUpper arch} Liminix Linux ${extraName}' -d vmlinux.bin.lzma kernel.uimage
|
|
'';
|
|
|
|
buildPhaseFIT = ''
|
|
${stripAndZip}
|
|
cat ${./kernel_fdt.its} > mkimage.its
|
|
cat << _VARS >> mkimage.its
|
|
/ {
|
|
images {
|
|
kernel {
|
|
data = /incbin/("./vmlinux.bin.lzma");
|
|
load = <0x${lib.toHexString loadAddress}>;
|
|
entry = <0x${lib.toHexString entryPoint}>;
|
|
arch = "${arch}";
|
|
compression = "lzma";
|
|
};
|
|
fdt-1 {
|
|
data = /incbin/("./tmp.dtb");
|
|
arch = "${arch}";
|
|
};
|
|
};
|
|
};
|
|
_VARS
|
|
mkimage -f mkimage.its -E ${
|
|
lib.optionalString (alignment != null) "-B 0x${lib.toHexString alignment}"
|
|
} kernel.uimage
|
|
mkimage -l kernel.uimage
|
|
'';
|
|
|
|
installPhase = ''
|
|
cp kernel.uimage $out
|
|
'';
|
|
}
|