First movement to get the raspberrypi stdenv building.

pkgs/development/compilers/gcc/4.6/default.nix

@@ -294,7 +294,9 @@ stdenv.mkDerivation ({
     ${if langAda then " --enable-libada" else ""}
     ${if (cross == null && stdenv.isi686) then "--with-arch=i686" else ""}
     ${if cross != null then crossConfigureFlags else ""}
-  ";
+  " + (if (cross == null && stdenv.platform.name == "raspberrypi") then
+      "--with-arch=armv6 --with-fpu=vfp --with-float=hard --with-mode=arm" else "");
+  # ^ This above is out of "" because we don't want to rebuild stdenv in other archs
 
   targetConfig = if (cross != null) then cross.config else null;
 

pkgs/development/libraries/glibc/2.13/common.nix

@@ -8,7 +8,7 @@ cross :
 , machHeaders ? null, hurdHeaders ? null, libpthreadHeaders ? null
 , mig ? null, fetchgit ? null
 , profilingLibraries ? false, meta
-, preConfigure ? "", ... }@args :
+, preConfigure ? "", recentGcc ? true, ... }@args :
 
 let
   # For GNU/Hurd, see below.
@@ -120,11 +120,21 @@ stdenv.mkDerivation ({
         && cross.platform.kernelMajor == "2.6") [
     "--enable-kernel=2.6.0"
     "--with-__thread"
-  ] ++ stdenv.lib.optionals stdenv.isArm [
+  ] ++ stdenv.lib.optionals (cross == null &&
+       (stdenv.system == "armv5tel-linux") ||
+       (!recentGcc && stdenv.platform.name == "raspberrypi")) [
     "--host=arm-linux-gnueabi"
     "--build=arm-linux-gnueabi"
     "--without-fp"
 
+    # To avoid linking with -lgcc_s (dynamic link)
+    # so the glibc does not depend on its compiler store path
+    "libc_cv_as_needed=no"
+  ] ++ stdenv.lib.optionals (cross == null && recentGcc && stdenv.platform.name == "raspberrypi") [
+    "--host=arm-linux-gnueabihf"
+    "--build=arm-linux-gnueabihf"
+    "--with-fp"
+
     # To avoid linking with -lgcc_s (dynamic link)
     # so the glibc does not depend on its compiler store path
     "libc_cv_as_needed=no"
@@ -192,6 +202,10 @@ stdenv.mkDerivation ({
     configureScript="`pwd`/../$sourceRoot/configure"
 
     ${preConfigure}
+  '' + stdenv.lib.optionalString (cross == null
+        && recentGcc
+        && stdenv.platform.name == "raspberrypi") ''
+    configureFlagsArray=("CFLAGS=-march=armv6 -mfpu=vfp -mhard-float")
   '';
 
   meta = {

pkgs/development/libraries/glibc/2.13/default.nix

@@ -5,6 +5,7 @@
 , profilingLibraries ? false
 , gccCross ? null
 , debugSymbols ? false
+, recentGcc ? true
 }:
 
 assert stdenv.gcc.gcc != null;
@@ -19,7 +20,7 @@ in
       + stdenv.lib.optionalString debugSymbols "-debug";
 
     inherit fetchurl stdenv kernelHeaders installLocales profilingLibraries
-      gccCross;
+      gccCross recentGcc;
 
     builder = ./builder.sh;
 

pkgs/stdenv/default.nix

@@ -55,6 +55,7 @@ rec {
     if stdenvType == "i686-linux" then stdenvLinux else
     if stdenvType == "x86_64-linux" then stdenvLinux else
     if stdenvType == "armv5tel-linux" then stdenvLinux else
+    if stdenvType == "armv6l-linux" then stdenvLinux else
     if stdenvType == "armv7l-linux" then stdenvLinux else
     if stdenvType == "mips64el-linux" then stdenvLinux else
     if stdenvType == "powerpc-linux" then /* stdenvLinux */ stdenvNative else

pkgs/stdenv/generic/default.nix

@@ -87,6 +87,7 @@ let
                || result.system == "x86_64-linux"
                || result.system == "powerpc-linux"
                || result.system == "armv5tel-linux"
+               || result.system == "armv6l-linux"
                || result.system == "armv7l-linux"
                || result.system == "mips64el-linux";
         isGNU = result.system == "i686-gnu";      # GNU/Hurd
@@ -120,6 +121,7 @@ let
         isMips = result.system == "mips-linux"
                 || result.system == "mips64el-linux";
         isArm = result.system == "armv5tel-linux"
+             || result.system == "armv6l-linux"
              || result.system == "armv7l-linux";
 
         # Utility function: allow stdenv to be easily regenerated with

pkgs/stdenv/linux/default.nix

@@ -16,6 +16,7 @@ rec {
     else if system == "x86_64-linux" then import ./bootstrap/x86_64
     else if system == "powerpc-linux" then import ./bootstrap/powerpc
     else if system == "armv5tel-linux" then import ./bootstrap/armv5tel
+    else if system == "armv6l-linux" then import ./bootstrap/armv5tel
     else if system == "armv7l-linux" then import ./bootstrap/armv5tel
     else if system == "mips64el-linux" then import ./bootstrap/loongson2f
     else abort "unsupported platform for the pure Linux stdenv";
@@ -57,7 +58,7 @@ rec {
     builder = bootstrapFiles.sh;
 
     args =
-      if system == "armv5tel-linux"
+      if (system == "armv5tel-linux" || system == "arm6l-linux")
       then [ ./scripts/unpack-bootstrap-tools-arm.sh ]
       else [ ./scripts/unpack-bootstrap-tools.sh ];
 
@@ -189,7 +190,7 @@ rec {
 
   # 5) Build Glibc with the bootstrap tools.  The result is the full,
   #    dynamically linked, final Glibc.
-  stdenvLinuxGlibc = stdenvLinuxBoot2Pkgs.glibc;
+  stdenvLinuxGlibc = stdenvLinuxBoot2Pkgs.glibc.override { recentGcc = false; };
 
 
   # 6) Construct a third stdenv identical to the 2nd, except that
@@ -201,19 +202,23 @@ rec {
       coreutils = bootstrapTools;
       libc = stdenvLinuxGlibc;
     };
-    overrides = pkgs: {
+    overrides = pkgs: ({
       glibc = stdenvLinuxGlibc;
       inherit (stdenvLinuxBoot1Pkgs) perl;
+    } // (if (platform ? name && platform.name != "raspberrypi") then {
       # Link GCC statically against GMP etc.  This makes sense because
       # these builds of the libraries are only used by GCC, so it
       # reduces the size of the stdenv closure.
+
+      # On raspberry pi we can't do that, because libgcc/libstdc++ are made
+      # without hardfp, and can't be linked with the new hardfp code in gcc.
       gmp = pkgs.gmp.override { stdenv = pkgs.makeStaticLibraries pkgs.stdenv; };
       mpfr = pkgs.mpfr.override { stdenv = pkgs.makeStaticLibraries pkgs.stdenv; };
       mpc = pkgs.mpc.override { stdenv = pkgs.makeStaticLibraries pkgs.stdenv; };
       isl = pkgs.isl.override { stdenv = pkgs.makeStaticLibraries pkgs.stdenv; };
       cloog = pkgs.cloog.override { stdenv = pkgs.makeStaticLibraries pkgs.stdenv; };
       ppl = pkgs.ppl.override { stdenv = pkgs.makeStaticLibraries pkgs.stdenv; };
-    };
+    } else {}));
     inherit fetchurl;
   };
 

pkgs/top-level/platforms.nix

@@ -126,6 +126,104 @@ rec {
     ubootConfig = "sheevaplug_config";
   };
 
+  raspberrypi = {
+    name = "raspberrypi";
+    kernelMajor = "2.6";
+    kernelHeadersBaseConfig = "kirkwood_defconfig";
+    kernelBaseConfig = "bcmrpi_defconfig";
+    kernelArch = "arm";
+    kernelAutoModules = false;
+    kernelExtraConfig =
+      ''
+        BLK_DEV_RAM y
+        BLK_DEV_INITRD y
+        BLK_DEV_CRYPTOLOOP m
+        BLK_DEV_DM m
+        DM_CRYPT m
+        MD y
+        REISERFS_FS m
+        BTRFS_FS m
+        XFS_FS m
+        JFS_FS m
+        EXT4_FS m
+        USB_STORAGE_CYPRESS_ATACB m
+
+        # mv cesa requires this sw fallback, for mv-sha1
+        CRYPTO_SHA1 y
+
+        IP_PNP y
+        IP_PNP_DHCP y
+        NFS_FS y
+        ROOT_NFS y
+        TUN m
+        NFS_V4 y
+        NFS_V4_1 y
+        NFS_FSCACHE y
+        NFSD m
+        NFSD_V2_ACL y
+        NFSD_V3 y
+        NFSD_V3_ACL y
+        NFSD_V4 y
+        NETFILTER y
+        IP_NF_IPTABLES y
+        IP_NF_FILTER y
+        IP_NF_MATCH_ADDRTYPE y
+        IP_NF_TARGET_LOG y
+        IP_NF_MANGLE y
+        IPV6 m
+        VLAN_8021Q m
+
+        CIFS y
+        CIFS_XATTR y
+        CIFS_POSIX y
+        CIFS_FSCACHE y
+        CIFS_ACL y
+
+        WATCHDOG y
+        WATCHDOG_CORE y
+        ORION_WATCHDOG m
+
+        ZRAM m
+        NETCONSOLE m
+
+        # Fail to build
+        DRM n
+        SCSI_ADVANSYS n
+        USB_ISP1362_HCD n
+        SND_SOC n
+        SND_ALI5451 n
+        FB_SAVAGE n
+        SCSI_NSP32 n
+        ATA_SFF n
+        SUNGEM n
+        IRDA n
+        ATM_HE n
+        SCSI_ACARD n
+        BLK_DEV_CMD640_ENHANCED n
+
+        FUSE_FS m
+
+        # nixos mounts some cgroup
+        CGROUPS y
+
+        # Latencytop 
+        LATENCYTOP y
+
+        # Ubi for the mtd
+        MTD_UBI y
+        UBIFS_FS y
+        UBIFS_FS_XATTR y
+        UBIFS_FS_ADVANCED_COMPR y
+        UBIFS_FS_LZO y
+        UBIFS_FS_ZLIB y
+        UBIFS_FS_DEBUG n
+      '';
+    kernelTarget = "uImage";
+    uboot = "sheevaplug";
+    # Only for uboot = uboot :
+    ubootConfig = "sheevaplug_config";
+  };
+
   guruplug = sheevaplug // {
     # Define `CONFIG_MACH_GURUPLUG' (see
     # <http://kerneltrap.org/mailarchive/git-commits-head/2010/5/19/33618>)