101 lines
3.2 KiB
Nix
101 lines
3.2 KiB
Nix
{ stdenv
|
|
, buildPackages
|
|
, runCommand
|
|
, writeText
|
|
, lib
|
|
|
|
, config
|
|
, checkedConfig ? {}
|
|
, tree
|
|
} :
|
|
let writeConfig = name : config: writeText name
|
|
(builtins.concatStringsSep
|
|
"\n"
|
|
(lib.mapAttrsToList
|
|
(name: value: (if value == "n" then "# CONFIG_${name} is not set" else "CONFIG_${name}=${value}"))
|
|
config
|
|
));
|
|
kconfigFile = writeConfig "kconfig" (config // checkedConfig);
|
|
# KLUDGE FIXME. some symbols we need to enable in some configurations don't
|
|
# have a prompt (!), so we can't turn them on just by adding FOO=y and make oldconfig
|
|
#
|
|
# (!) yes, that was my reaction too
|
|
kconfigLocal = writeText "Kconfig.local" ''
|
|
config LIMINIX
|
|
prompt "Local symbols"
|
|
bool
|
|
default y
|
|
select SOC_QCA955X
|
|
'';
|
|
checkedConfigFile = writeConfig "checked_kconfig" checkedConfig ;
|
|
inherit lib; in
|
|
stdenv.mkDerivation rec {
|
|
name = "vmlinux";
|
|
|
|
hardeningDisable = ["all"];
|
|
nativeBuildInputs = [buildPackages.stdenv.cc] ++
|
|
(with buildPackages.pkgs;
|
|
[rsync bc bison flex pkgconfig openssl ncurses.all perl]);
|
|
CC = "${stdenv.cc.bintools.targetPrefix}gcc";
|
|
HOSTCC = with buildPackages.pkgs;
|
|
"gcc -I${openssl}/include -I${ncurses}/include";
|
|
HOST_EXTRACFLAGS = with buildPackages.pkgs;
|
|
"-I${openssl.dev}/include -L${openssl.out}/lib -L${ncurses.out}/lib";
|
|
PKG_CONFIG_PATH = "./pkgconfig";
|
|
CROSS_COMPILE = stdenv.cc.bintools.targetPrefix;
|
|
ARCH = "mips"; # kernel uses "mips" here for both mips and mipsel
|
|
dontStrip = true;
|
|
dontPatchELF = true;
|
|
outputs = ["out" "modulesupport"];
|
|
phases = [
|
|
"butcherPkgconfig"
|
|
"configurePhase"
|
|
"checkConfigurationPhase"
|
|
"buildPhase"
|
|
"installPhase"
|
|
];
|
|
|
|
# this is here to work around what I think is a bug in nixpkgs
|
|
# packaging of ncurses: it installs pkg-config data files which
|
|
# don't produce any -L options when queried with "pkg-config --lib
|
|
# ncurses". For a regular build you'll never even notice, this only
|
|
# becomes an issue if you do a nix-shell in this derivation and
|
|
# expect "make nconfig" to work.
|
|
butcherPkgconfig = ''
|
|
cp -r ${buildPackages.pkgs.ncurses.dev}/lib/pkgconfig .
|
|
chmod +w pkgconfig pkgconfig/*.pc
|
|
for i in pkgconfig/*.pc; do test -f $i && sed -i 's/^Libs:/Libs: -L''${libdir} /' $i;done
|
|
'';
|
|
|
|
configurePhase = ''
|
|
export KBUILD_OUTPUT=`pwd`
|
|
cp ${kconfigFile} .config
|
|
cp ${kconfigFile} .config.orig
|
|
cp ${kconfigLocal} Kconfig.local
|
|
( cd ${tree} && make V=1 olddefconfig )
|
|
'';
|
|
|
|
checkConfigurationPhase = ''
|
|
echo Checking required config items:
|
|
if comm -2 -3 <(grep 'CONFIG' ${checkedConfigFile} |sort) <(grep 'CONFIG' .config|sort) |grep '.' ; then
|
|
echo -e "^^^ Some configuration lost :-(\nPerhaps you have mutually incompatible settings, or have disabled options on which these depend.\n"
|
|
exit 0
|
|
fi
|
|
echo "OK"
|
|
'';
|
|
|
|
KBUILD_BUILD_HOST = "liminix.builder";
|
|
buildPhase = ''
|
|
make -C ${tree} vmlinux modules_prepare
|
|
'';
|
|
|
|
installPhase = ''
|
|
${CROSS_COMPILE}strip -d vmlinux
|
|
cp vmlinux $out
|
|
make clean
|
|
mkdir -p $modulesupport
|
|
cp -a . $modulesupport
|
|
'';
|
|
|
|
}
|