6671aff83e
Testing showed the linux build is sensitive to /usr/include/ncursesw unless chrooted (on non-nixos). On a single chrooted nixos machine, -A linux is binary reproducible. CC #2281 & @alexanderkjeldaas.
239 lines
8.0 KiB
Nix
239 lines
8.0 KiB
Nix
{ stdenv, runCommand, nettools, bc, perl, kmod, writeTextFile, ubootChooser }:
|
|
|
|
let
|
|
readConfig = configfile: import (runCommand "config.nix" {} ''
|
|
echo "{" > "$out"
|
|
while IFS='=' read key val; do
|
|
[ "x''${key#CONFIG_}" != "x$key" ] || continue
|
|
no_firstquote="''${val#\"}";
|
|
echo ' "'"$key"'" = "'"''${no_firstquote%\"}"'";' >> "$out"
|
|
done < "${configfile}"
|
|
echo "}" >> $out
|
|
'').outPath;
|
|
in {
|
|
# The kernel version
|
|
version,
|
|
# The version of the kernel module directory
|
|
modDirVersion ? version,
|
|
# The kernel source (tarball, git checkout, etc.)
|
|
src,
|
|
# Any patches
|
|
kernelPatches ? [],
|
|
# Patches for native compiling only
|
|
nativeKernelPatches ? [],
|
|
# Patches for cross compiling only
|
|
crossKernelPatches ? [],
|
|
# The native kernel .config file
|
|
configfile,
|
|
# The cross kernel .config file
|
|
crossConfigfile ? configfile,
|
|
# Manually specified nixexpr representing the config
|
|
# If unspecified, this will be autodetected from the .config
|
|
config ? stdenv.lib.optionalAttrs allowImportFromDerivation (readConfig configfile),
|
|
# Cross-compiling config
|
|
crossConfig ? if allowImportFromDerivation then (readConfig crossConfigfile) else config,
|
|
# Whether to utilize the controversial import-from-derivation feature to parse the config
|
|
allowImportFromDerivation ? false
|
|
}:
|
|
|
|
let
|
|
inherit (stdenv.lib)
|
|
hasAttr getAttr optional optionalString optionalAttrs maintainers platforms;
|
|
|
|
installkernel = writeTextFile { name = "installkernel"; executable=true; text = ''
|
|
#!${stdenv.shell} -e
|
|
mkdir -p $4
|
|
cp -av $2 $4
|
|
cp -av $3 $4
|
|
''; };
|
|
|
|
commonMakeFlags = [
|
|
"O=$(buildRoot)"
|
|
];
|
|
|
|
drvAttrs = config_: platform: kernelPatches: configfile:
|
|
let
|
|
config = let attrName = attr: "CONFIG_" + attr; in {
|
|
isSet = attr: hasAttr (attrName attr) config;
|
|
|
|
getValue = attr: if config.isSet attr then getAttr (attrName attr) config else null;
|
|
|
|
isYes = attr: (config.getValue attr) == "y";
|
|
|
|
isNo = attr: (config.getValue attr) == "n";
|
|
|
|
isModule = attr: (config.getValue attr) == "m";
|
|
|
|
isEnabled = attr: (config.isModule attr) || (config.isYes attr);
|
|
|
|
isDisabled = attr: (!(config.isSet attr)) || (config.isNo attr);
|
|
} // config_;
|
|
|
|
isModular = config.isYes "MODULES";
|
|
|
|
installsFirmware = (config.isEnabled "FW_LOADER") &&
|
|
(isModular || (config.isDisabled "FIRMWARE_IN_KERNEL"));
|
|
in (optionalAttrs isModular { outputs = [ "out" "dev" ]; }) // {
|
|
passthru = {
|
|
inherit version modDirVersion config kernelPatches;
|
|
};
|
|
|
|
inherit src;
|
|
|
|
preUnpack = ''
|
|
mkdir build
|
|
export buildRoot="$(pwd)/build"
|
|
'';
|
|
|
|
patches = map (p: p.patch) kernelPatches;
|
|
|
|
prePatch = ''
|
|
for mf in $(find -name Makefile -o -name Makefile.include -o -name install.sh); do
|
|
echo "stripping FHS paths in \`$mf'..."
|
|
sed -i "$mf" -e 's|/usr/bin/||g ; s|/bin/||g ; s|/sbin/||g'
|
|
done
|
|
sed -i Makefile -e 's|= depmod|= ${kmod}/sbin/depmod|'
|
|
'';
|
|
|
|
configurePhase = ''
|
|
runHook preConfigure
|
|
ln -sv ${configfile} $buildRoot/.config
|
|
make $makeFlags "''${makeFlagsArray[@]}" oldconfig
|
|
runHook postConfigure
|
|
|
|
buildFlagsArray+=("KBUILD_BUILD_TIMESTAMP=Thu Jan 1 00:00:01 UTC 1970")
|
|
'';
|
|
|
|
buildFlags = [
|
|
"KBUILD_BUILD_VERSION=1-NixOS"
|
|
platform.kernelTarget
|
|
] ++ optional isModular "modules";
|
|
|
|
installFlags = [
|
|
"INSTALLKERNEL=${installkernel}"
|
|
"INSTALL_PATH=$(out)"
|
|
] ++ (optional isModular "INSTALL_MOD_PATH=$(out)")
|
|
++ optional installsFirmware "INSTALL_FW_PATH=$(out)/lib/firmware";
|
|
|
|
# Some image types need special install targets (e.g. uImage is installed with make uinstall)
|
|
installTargets = [ (if platform.kernelTarget == "uImage" then "uinstall" else "install") ];
|
|
|
|
postInstall = optionalString installsFirmware ''
|
|
mkdir -p $out/lib/firmware
|
|
'' + (if isModular then ''
|
|
make modules_install $makeFlags "''${makeFlagsArray[@]}" \
|
|
$installFlags "''${installFlagsArray[@]}"
|
|
unlink $out/lib/modules/${modDirVersion}/build
|
|
unlink $out/lib/modules/${modDirVersion}/source
|
|
|
|
mkdir -p $dev/lib/modules/${modDirVersion}
|
|
cd ..
|
|
mv $sourceRoot $dev/lib/modules/${modDirVersion}/source
|
|
cd $dev/lib/modules/${modDirVersion}/source
|
|
|
|
mv $buildRoot/.config $buildRoot/Module.symvers $TMPDIR
|
|
rm -fR $buildRoot
|
|
mkdir $buildRoot
|
|
mv $TMPDIR/.config $TMPDIR/Module.symvers $buildRoot
|
|
make modules_prepare $makeFlags "''${makeFlagsArray[@]}"
|
|
mv $buildRoot $dev/lib/modules/${modDirVersion}/build
|
|
|
|
# !!! No documentation on how much of the source tree must be kept
|
|
# If/when kernel builds fail due to missing files, you can add
|
|
# them here. Note that we may see packages requiring headers
|
|
# from drivers/ in the future; it adds 50M to keep all of its
|
|
# headers on 3.10 though.
|
|
|
|
chmod +w -R ../source
|
|
arch=`cd $dev/lib/modules/${modDirVersion}/build/arch; ls`
|
|
|
|
# Remove unusued arches
|
|
mv arch/$arch .
|
|
rm -fR arch
|
|
mkdir arch
|
|
mv $arch arch
|
|
|
|
# Remove all driver-specific code (50M of which is headers)
|
|
rm -fR drivers
|
|
|
|
# Keep all headers
|
|
find . -type f -name '*.h' -print0 | xargs -0 chmod -w
|
|
|
|
# Keep root and arch-specific Makefiles
|
|
chmod -w Makefile
|
|
chmod -w arch/$arch/Makefile*
|
|
|
|
# Keep whole scripts dir
|
|
chmod -w -R scripts
|
|
|
|
# Delete everything not kept
|
|
find . -type f -perm -u=w -print0 | xargs -0 rm
|
|
|
|
# Delete empty directories
|
|
find -empty -type d -delete
|
|
|
|
# Remove reference to kmod
|
|
sed -i Makefile -e 's|= ${kmod}/sbin/depmod|= depmod|'
|
|
'' else optionalString installsFirmware ''
|
|
make firmware_install $makeFlags "''${makeFlagsArray[@]}" \
|
|
$installFlags "''${installFlagsArray[@]}"
|
|
'');
|
|
|
|
# !!! This leaves references to gcc in $dev
|
|
# that we might be able to avoid
|
|
postFixup = if isModular then ''
|
|
if [ -z "$dontStrip" ]; then
|
|
find $out -name "*.ko" -print0 | xargs -0 -r ''${crossConfig+$crossConfig-}strip -S
|
|
fi
|
|
# !!! Should this be part of stdenv? Also patchELF should take an argument...
|
|
prefix=$dev
|
|
patchELF
|
|
prefix=$out
|
|
'' else null;
|
|
|
|
meta = {
|
|
description =
|
|
"The Linux kernel" +
|
|
(if kernelPatches == [] then "" else
|
|
" (with patches: "
|
|
+ stdenv.lib.concatStrings (stdenv.lib.intersperse ", " (map (x: x.name) kernelPatches))
|
|
+ ")");
|
|
license = stdenv.lib.licenses.gpl2;
|
|
homepage = http://www.kernel.org/;
|
|
repositories.git = https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git;
|
|
maintainers = [
|
|
maintainers.shlevy
|
|
maintainers.thoughtpolice
|
|
];
|
|
platforms = platforms.linux;
|
|
};
|
|
};
|
|
in
|
|
|
|
stdenv.mkDerivation ((drvAttrs config stdenv.platform (kernelPatches ++ nativeKernelPatches) configfile) // {
|
|
name = "linux-${version}";
|
|
|
|
enableParallelBuilding = true;
|
|
|
|
nativeBuildInputs = [ perl bc nettools ] ++ optional (stdenv.platform.uboot != null)
|
|
(ubootChooser stdenv.platform.uboot);
|
|
|
|
makeFlags = commonMakeFlags ++ [
|
|
"ARCH=${stdenv.platform.kernelArch}"
|
|
];
|
|
|
|
crossAttrs = let cp = stdenv.cross.platform; in
|
|
(drvAttrs crossConfig cp (kernelPatches ++ crossKernelPatches) crossConfigfile) // {
|
|
makeFlags = commonMakeFlags ++ [
|
|
"ARCH=${cp.kernelArch}"
|
|
"CROSS_COMPILE=$(crossConfig)-"
|
|
];
|
|
|
|
# !!! uboot has messed up cross-compiling, nativeDrv builds arm tools on x86,
|
|
# crossDrv builds x86 tools on x86 (but arm uboot). If this is fixed, uboot
|
|
# can just go into buildInputs (but not nativeBuildInputs since cp.uboot
|
|
# may be different from stdenv.platform.uboot)
|
|
buildInputs = optional (cp.uboot != null) (ubootChooser cp.uboot).crossDrv;
|
|
};
|
|
})
|