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{ stdenv, fetchurl, perl, mktemp, module_init_tools
, # The kernel source tarball.
src
, # The kernel version.
version
, # The kernel configuration.
config
, # An attribute set whose attributes express the availability of
# certain features in this kernel. E.g. `{iwlwifi = true;}'
# indicates a kernel that provides Intel wireless support. Used in
# NixOS to implement kernel-specific behaviour.
features ? {}
, # A list of patches to apply to the kernel. Each element of this list
# should be an attribute set {name, patch} where `name' is a
# symbolic name and `patch' is the actual patch. The patch may
# optionally be compressed with gzip or bzip2.
kernelPatches ? []
, # Whether to build a User-Mode Linux kernel.
userModeLinux ? false
, # Whether to build a Xen kernel.
xen ? false
, # Allows you to set your own kernel version suffix (e.g.,
# "-my-kernel").
localVersion ? ""
, preConfigure ? ""
, extraMeta ? {}
, platform ? {
name = "pc";
uboot = null;
kernelBaseConfig = "defconfig";
kernelAutoModules = true;
}
, ...
}:
assert stdenv.system == "i686-linux" || stdenv.system == "x86_64-linux"
|| stdenv.system == "armv5tel-linux";
assert platform.name == "sheevaplug" -> platform.uboot != null;
assert (platform.name == "sheevaplug" || platform.name == "versatileARM") ->
stdenv.system == "armv5tel-linux";
let
lib = stdenv.lib;
in
stdenv.mkDerivation {
name = if userModeLinux then "user-mode-linux-${version}" else "linux-${version}";
passthru = {
inherit version;
# Combine the `features' attribute sets of all the kernel patches.
features = lib.fold (x: y: (if x ? features then x.features else {}) // y) features kernelPatches;
};
builder = ./builder.sh;
generateConfig = ./generate-config.pl;
inherit preConfigure src module_init_tools localVersion;
autoModules = platform.kernelAutoModules;
patches = map (p: p.patch) kernelPatches;
kernelConfig =
let
configFromPatches =
map ({extraConfig ? "", ...}: extraConfig) kernelPatches;
in lib.concatStringsSep "\n" ([config] ++ configFromPatches);
# For UML and non-PC, just ignore all options that don't apply (We are lazy).
ignoreConfigErrors = (userModeLinux || stdenv.system == "armv5tel-linux");
buildInputs = [ perl mktemp ]
++ lib.optional (platform.uboot != null) [platform.uboot];
platformName = platform.name;
kernelBaseConfig = platform.kernelBaseConfig;
arch =
if xen then "xen" else
if userModeLinux then "um" else
if platform ? kernelArch then platform.kernelArch else
if stdenv.system == "i686-linux" then "i386" else
if stdenv.system == "x86_64-linux" then "x86_64" else
abort "Platform ${stdenv.system} is not supported.";
meta = {
description =
(if userModeLinux then
"User-Mode Linux"
else
"The Linux kernel") +
(if kernelPatches == [] then "" else
" (with patches: "
+ lib.concatStrings (lib.intersperse ", " (map (x: x.name) kernelPatches))
+ ")");
license = "GPLv2";
homepage = http://www.kernel.org/;
maintainers = [ lib.maintainers.eelco ];
} // extraMeta;
}
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