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|
{ stdenv, runCommand, nettools, perl, kmod, writeTextFile }:
with stdenv.lib;
let
# Function to parse the config file to get the features supported
readFeatures = config:
let
# !!! Original causes recursion too deep, need to import from derivation
# linesWithComments = splitString "\n" (builtins.readFile config);
lines = import "${runCommand "lines.nix" {} ''
echo "[" >> $out
while read line; do
if [ -n "$line" ] && [ "#" != ''${line:0:1} ]; then
echo "'''" >> $out
echo $(echo $line | sed "s/'''/''''/g")"'''" >> $out
fi
done < ${config}
echo "]" >> $out
''}";
nvpairs = map (s: let split = splitString "=" s; fst = head split; in {
name = substring (stringLength "CONFIG_") (stringLength fst) fst;
value = head (tail split);
}) lines;
configAttrs = listToAttrs nvpairs;
getValue = option:
if hasAttr option configAttrs then getAttr option configAttrs else null;
isYes = option: (getValue option) == "y";
in
{
modular = isYes "MODULES";
};
in
{
# The kernel version
version,
# The version of the kernel module directory
modDirVersion ? version,
# The kernel source (tarball, git checkout, etc.)
src,
# Any patches
patches ? [],
# The kernel .config file
config,
# Manually specified features the kernel supports
features ? readFeatures config
}:
let
commonMakeFlags = [
"O=../build"
"INSTALL_PATH=$(out)"
"INSTALLKERNEL=${installkernel}"
];
installkernel = writeTextFile { name = "installkernel"; executable=true; text = ''
#!/bin/sh
mkdir $4
mv -v $2 $4
mv -v $3 $4
'';};
in
stdenv.mkDerivation ({
name = "linux-${version}";
enableParallelBuilding = true;
passthru = {
inherit version modDirVersion features;
};
inherit patches src;
prePatch = ''
for mf in $(find -name Makefile -o -name Makefile.include); do
echo "stripping FHS paths in \`$mf'..."
sed -i "$mf" -e 's|/usr/bin/||g ; s|/bin/||g ; s|/sbin/||g'
done
'';
configurePhase = ''
runHook preConfigure
mkdir ../build
make $makeFlags "''${makeFlagsArray[@]}" mrproper
ln -sv ${config} ../build/.config
make $makeFlags "''${makeFlagsArray[@]}" oldconfig
rm ../build/.config.old
runHook postConfigure
'';
buildNativeInputs = [ perl nettools kmod ];
makeFlags = commonMakeFlags;
} // optionalAttrs features.modular {
makeFlags = commonMakeFlags ++ [
"MODLIB=\"$(out)/lib/modules/${modDirVersion}\""
];
postInstall = ''
make modules_install $makeFlags "''${makeFlagsArray[@]}" \
$installFlags "''${installFlagsArray[@]}"
rm -f $out/lib/modules/${modDirVersion}/{build,source}
cd ..
mv $sourceRoot $out/lib/modules/${modDirVersion}/source
mv build $out/lib/modules/${modDirVersion}/build
'';
postFixup = ''
if [ -z "$dontStrip" ]; then
find $out -name "*.ko" -print0 | xargs -0 strip -S
fi
'';
})
|