nixpkgs/pkgs/os-specific/linux/kernel-headers/2.6.32.nix
Lluís Batlle i Rossell b1b7266aa3 After some testing with an ultrasparc cross-compiler:
Updating the cross-build expressions, adding some flexibility.
Updated the linux headers used cross building, as 2.6.28 had bugs on endianness in
sparc64.
There were, as usual some bugs in gcc. Maybe not many make a cross compiler to
ultrasparc.

For the record, I could build an ultrasparc kernel with this base nix:
import /etc/nixos/nixpkgs/default.nix   # The root nixpkgs default.nix
{
    crossSystem = {
        config = "sparc64-unknown-linux";
        bigEndian = true;
        arch = "sparc64";
        float = "soft";
        withTLS = true;
        cpu = "ultrasparc";
    };

    config = pkgs: {
      packageOverrides = pkgs : {
        platform = {
            name = "sparc64";
            kernelHeadersBaseConfig = "sparc64_defconfig";
            kernelBaseConfig = "sparc64_defconfig";
            kernelArch = "sparc";
            kernelAutoModules = false;
            kernelTarget = "zImage";
            uboot = null;
        };
      };
    };
}

Although it did not boot directly in qemu-system-sparc64:
[sparc64] Kernel already loaded
Unhandled Exception 0x0000000000000020
PC = 0x0000000000404000 NPC = 0x0000000000404004

svn path=/nixpkgs/trunk/; revision=20269
2010-02-27 00:52:48 +00:00

56 lines
1.5 KiB
Nix

{stdenv, fetchurl, perl, cross ? null, platform}:
assert cross == null -> stdenv.isLinux;
let version = "2.6.32.9"; in
stdenv.mkDerivation {
name = "linux-headers-${version}";
src = fetchurl {
url = "mirror://kernel/linux/kernel/v2.6/linux-${version}.tar.bz2";
sha256 = "1g6hs7j5kmifb3phbnckdmrnxd0cpqrijnnbry86z26npsh9my7l";
};
targetConfig = if (cross != null) then cross.config else null;
platform =
if cross != null then platform.kernelArch else
if stdenv.system == "i686-linux" then "i386" else
if stdenv.system == "x86_64-linux" then "x86_64" else
if stdenv.system == "powerpc-linux" then "powerpc" else
if stdenv.system == "armv5tel-linux" then "arm" else
abort "don't know what the kernel include directory is called for this platform";
buildInputs = [perl];
extraIncludeDirs =
if cross != null then
(if cross.arch == "powerpc" then ["ppc"] else [])
else if stdenv.system == "powerpc-linux" then ["ppc"] else [];
buildPhase = ''
if test -n "$targetConfig"; then
export ARCH=$platform
fi
make ${platform.kernelHeadersBaseConfig}
make mrproper headers_check
'';
installPhase = ''
make INSTALL_HDR_PATH=$out headers_install
# Some builds (e.g. KVM) want a kernel.release.
ensureDir $out/include/config
echo "${version}-default" > $out/include/config/kernel.release
'';
# !!! hacky
fixupPhase = ''
ln -s asm $out/include/asm-$platform
if test "$platform" = "i386" -o "$platform" = "x86_64"; then
ln -s asm $out/include/asm-x86
fi
'';
}