Merge pull request #6184 from ambrop72/bootstrap-tools-staging

Bootstrap tools improvements to cross-compile for ARM

pkgs/development/libraries/glibc/default.nix

@@ -32,7 +32,7 @@ in
     # Building from a proper gcc staying in the path where it was installed,
     # libgcc_s will not be at {gcc}/lib, and gcc's libgcc will be found without
     # any special hack.
-    preInstall = ''
+    preInstall = if cross != null then "" else ''
       if [ -f ${stdenv.cc.cc}/lib/libgcc_s.so.1 ]; then
           mkdir -p $out/lib
           cp ${stdenv.cc.cc}/lib/libgcc_s.so.1 $out/lib/libgcc_s.so.1

pkgs/development/libraries/libelf/default.nix

@@ -1,4 +1,4 @@
-{ fetchurl, stdenv, gettext }:
+{ fetchurl, stdenv, gettext, glibc }:
 
 stdenv.mkDerivation (rec {
   name = "libelf-0.8.13";
@@ -10,6 +10,11 @@ stdenv.mkDerivation (rec {
 
   doCheck = true;
   
+  # For cross-compiling, native glibc is needed for the "gencat" program.
+  crossAttrs = {
+    nativeBuildInputs = [ glibc ];
+  };
+
   meta = {
     description = "ELF object file access library";
 

pkgs/development/tools/misc/binutils/default.nix

@@ -36,9 +36,8 @@ stdenv.mkDerivation rec {
     ./pt-pax-flags-20121023.patch
   ];
 
-  buildInputs =
+  nativeBuildInputs = optional gold bison;
-    [ zlib ]
+  buildInputs = [ zlib ];
-    ++ optional gold bison;
 
   inherit noSysDirs;
 

pkgs/development/tools/parsing/bison/3.x.nix

@@ -1,11 +1,11 @@
 { stdenv, fetchurl, m4, perl }:
 
 stdenv.mkDerivation rec {
-  name = "bison-3.0.2";
+  name = "bison-3.0.4";
 
   src = fetchurl {
     url = "mirror://gnu/bison/${name}.tar.gz";
-    sha256 = "1vc17y6242jlwp0gdj7wsim3nvc1ws7q3j0v3065nz8g9hd9vwnd";
+    sha256 = "b67fd2daae7a64b5ba862c66c07c1addb9e6b1b05c5f2049392cfd8a2172952e";
   };
 
   nativeBuildInputs = [ m4 perl ];

pkgs/stdenv/adapters.nix

@@ -114,6 +114,7 @@ rec {
         };
     } // {
       inherit cross gccCross binutilsCross;
+      ccCross = gccCross;
     };
 
 

pkgs/stdenv/linux/bootstrap/armv6l.nix

@@ -1,11 +1,12 @@
-# Use the static tools for armv5tel-linux.
-(import ./armv5tel.nix) //
-
 {
-  bootstrapTools = {
+  busybox = import <nix/fetchurl.nix> {
-    # Built from make-bootstrap-tools-crosspi.nix
+    url = https://dl.dropboxusercontent.com/s/4705ffxjrxxqnh2/busybox?dl=0;
-    # nixpkgs rev eb0422e4c1263a65a9b2b954fe10a1e03d67db3e
+    sha256 = "032maafy4akcdgccpxdxrza29pkcpm81g8kh1hv8bj2rvssly3z2";
-    url = http://viric.name/tmp/nix/pi/bootstrap-tools.cpio.bz2;
+    executable = true;
-    sha256 = "1zb27x5h54k51yrvn3sy4wb1qprx8iv2kfbgklxwc0mcxp9b7ccd";
+  };
+
+  bootstrapTools = import <nix/fetchurl.nix> {
+    url = https://dl.dropboxusercontent.com/s/pen8ieymeqqdvqn/bootstrap-tools.tar.xz?dl=0;
+    sha256 = "0kjpjwi6qw82ca02ppsih3bnhc3y150q23k9d56xzscs0xf5d0dv";
   };
 }

pkgs/stdenv/linux/bootstrap/armv7l.nix

@@ -0,0 +1,12 @@
+{
+  busybox = import <nix/fetchurl.nix> {
+    url = https://dl.dropboxusercontent.com/s/rowzme529tc5svq/busybox?dl=0;
+    sha256 = "18793riwv9r1bgz6zv03c84cd0v26gxsm8wd2c7gjrwwyfg46ls4";
+    executable = true;
+  };
+
+  bootstrapTools = import <nix/fetchurl.nix> {
+    url = https://dl.dropboxusercontent.com/s/3jr4s5449t7zjlj/bootstrap-tools.tar.xz?dl=0;
+    sha256 = "1qyp871dajz5mi3yaw9sndwh4yrh1jj184wjjwaf6dpr3jir4kyd";
+  };
+}

pkgs/stdenv/linux/default.nix

@@ -7,16 +7,18 @@
 # The function defaults are for easy testing.
 { system ? builtins.currentSystem
 , allPackages ? import ../../top-level/all-packages.nix
-, platform ? null, config ? {}, lib ? (import ../../../lib) }:
+, platform ? null, config ? {}, lib ? (import ../../../lib)
+, customBootstrapFiles ? null }:
 
 rec {
 
   bootstrapFiles =
-    if system == "i686-linux" then import ./bootstrap/i686.nix
+    if customBootstrapFiles != null then customBootstrapFiles
+    else if system == "i686-linux" then import ./bootstrap/i686.nix
     else if system == "x86_64-linux" then import ./bootstrap/x86_64.nix
     else if system == "armv5tel-linux" then import ./bootstrap/armv5tel.nix
     else if system == "armv6l-linux" then import ./bootstrap/armv6l.nix
-    else if system == "armv7l-linux" then import ./bootstrap/armv6l.nix
+    else if system == "armv7l-linux" then import ./bootstrap/armv7l.nix
     else if system == "mips64el-linux" then import ./bootstrap/loongson2f.nix
     else abort "unsupported platform for the pure Linux stdenv";
 
@@ -42,11 +44,7 @@ rec {
 
     builder = bootstrapFiles.busybox;
 
-    args =
+    args = [ "ash" "-e" ./scripts/unpack-bootstrap-tools.sh ];
-      if system == "armv5tel-linux" || system == "armv6l-linux"
-        || system == "armv7l-linux"
-      then [ ./scripts/unpack-bootstrap-tools-arm.sh ]
-      else [ "ash" "-e" ./scripts/unpack-bootstrap-tools.sh ];
 
     tarball = bootstrapFiles.bootstrapTools;
 
@@ -298,4 +296,52 @@ rec {
     };
   };
   
+  
+  testBootstrapTools = let
+    defaultPkgs = allPackages { inherit system platform; };
+  in derivation {
+    name = "test-bootstrap-tools";
+    inherit system;
+    builder = bootstrapFiles.busybox;
+    args = [ "ash" "-e" "-c" "eval \"$buildCommand\"" ];
+
+    buildCommand = ''
+      export PATH=${bootstrapTools}/bin
+      
+      ls -l
+      mkdir $out
+      mkdir $out/bin
+      sed --version
+      find --version
+      diff --version
+      patch --version
+      make --version
+      awk --version
+      grep --version
+      gcc --version
+      curl --version
+
+      ldlinux=$(echo ${bootstrapTools}/lib/ld-linux*.so.?)
+      export CPP="cpp -idirafter ${bootstrapTools}/include-glibc -B${bootstrapTools}"
+      export CC="gcc -idirafter ${bootstrapTools}/include-glibc -B${bootstrapTools} -Wl,-dynamic-linker,$ldlinux -Wl,-rpath,${bootstrapTools}/lib"
+      export CXX="g++ -idirafter ${bootstrapTools}/include-glibc -B${bootstrapTools} -Wl,-dynamic-linker,$ldlinux -Wl,-rpath,${bootstrapTools}/lib"
+
+      echo '#include <stdio.h>' >> foo.c
+      echo '#include <limits.h>' >> foo.c
+      echo 'int main() { printf("Hello World\\n"); return 0; }' >> foo.c
+      $CC -o $out/bin/foo foo.c
+      $out/bin/foo
+
+      echo '#include <iostream>' >> bar.cc
+      echo 'int main() { std::cout << "Hello World\\n"; }' >> bar.cc
+      $CXX -v -o $out/bin/bar bar.cc
+      $out/bin/bar
+
+      tar xvf ${defaultPkgs.hello.src}
+      cd hello-*
+      ./configure --prefix=$out
+      make
+      make install
+    '';
+  };
 }

pkgs/stdenv/linux/make-bootstrap-tools-crosspi.nix

@@ -1,10 +1,26 @@
 {system ? builtins.currentSystem}:
 
+let buildFor = toolsArch: (
+
 let
   pkgsFun = import ../../top-level/all-packages.nix;
   pkgsNoParams = pkgsFun {};
+  
+  sheevaplugCrossSystem = {
+    crossSystem = rec {
+      config = "armv5tel-unknown-linux-gnueabi";
+      bigEndian = false;
+      arch = "arm";
+      float = "soft";
+      withTLS = true;
+      libc = "glibc";
+      platform = pkgsNoParams.platforms.sheevaplug;
+      openssl.system = "linux-generic32";
+    };
+  };
+  
   raspberrypiCrossSystem = {
-    crossSystem = {
+    crossSystem = rec {
       config = "armv6l-unknown-linux-gnueabi";  
       bigEndian = false;
       arch = "arm";
@@ -14,51 +30,34 @@ let
       libc = "glibc";
       platform = pkgsNoParams.platforms.raspberrypi;
       openssl.system = "linux-generic32";
-      gcc = {
+      inherit (platform) gcc;
-        arch = "armv6";
-        fpu = "vfp";
-        float = "hard";
-      };
     };
   };
   
-  raspberrypiCrossSystemUclibc = {
+  beagleboneCrossSystem = {
-    crossSystem = {
+    crossSystem = rec {
-      config = "armv6l-unknown-linux-gnueabi";  
+      config = "armv7l-unknown-linux-gnueabi";  
       bigEndian = false;
       arch = "arm";
       float = "hard";
-      fpu = "vfp";
+      fpu = "vfpv3-d16";
       withTLS = true;
-      libc = "uclibc";
+      libc = "glibc";
-      platform = pkgsNoParams.platforms.raspberrypi;
+      platform = pkgsNoParams.platforms.beaglebone;
       openssl.system = "linux-generic32";
-      gcc = {
+      inherit (platform) gcc;
-        arch = "armv6";
-        fpu = "vfp";
-        float = "hard";
-      };
-      uclibc.extraConfig = ''
-        ARCH_WANTS_BIG_ENDIAN n
-        ARCH_BIG_ENDIAN n
-        ARCH_WANTS_LITTLE_ENDIAN y
-        ARCH_LITTLE_ENDIAN y
-      '';
     };
   };
   
-  pkgsuclibc = pkgsFun ({inherit system;} // raspberrypiCrossSystemUclibc);
+  selectedCrossSystem =
-  pkgs = pkgsFun ({inherit system;} // raspberrypiCrossSystem);
+    if toolsArch == "armv5tel" then sheevaplugCrossSystem else
+    if toolsArch == "armv6l" then raspberrypiCrossSystem else
+    if toolsArch == "armv7l" then beagleboneCrossSystem else null;
+
+  pkgs = pkgsFun ({inherit system;} // selectedCrossSystem);
 
   inherit (pkgs) stdenv nukeReferences cpio binutilsCross;
 
-  # We want coreutils without ACL support.
-  coreutils_base = pkgs.coreutils.override (args: {
-    aclSupport = false;
-  });
-
-  coreutils_ = coreutils_base.crossDrv;
-
   glibc = pkgs.libcCross;
   bash = pkgs.bash.crossDrv;
   findutils = pkgs.findutils.crossDrv;
@@ -72,9 +71,8 @@ let
   gnumake = pkgs.gnumake.crossDrv;
   patch = pkgs.patch.crossDrv;
   patchelf = pkgs.patchelf.crossDrv;
-  replace = pkgs.replace.crossDrv;
+  gcc = pkgs.gcc.cc.crossDrv;
-  gcc = pkgs.gcc;
+  gmpxx = pkgs.gmpxx.crossDrv;
-  gmp = pkgs.gmp.crossDrv;
   mpfr = pkgs.mpfr.crossDrv;
   ppl = pkgs.ppl.crossDrv;
   cloogppl = pkgs.cloogppl.crossDrv;
@@ -83,25 +81,38 @@ let
   isl = pkgs.isl.crossDrv;
   libmpc = pkgs.libmpc.crossDrv;
   binutils = pkgs.binutils.crossDrv;
-  klibc = pkgs.linuxPackages.klibc.crossDrv;
+  libelf = pkgs.libelf.crossDrv;
 
 in
 
 rec {
 
-  curlStatic = import <nixpkgs/pkgs/tools/networking/curl> {
+  # We want coreutils without ACL support.
-    stdenv = pkgsuclibc.stdenv;
+  coreutilsMinimal = (pkgs.coreutils.override (args: {
-    inherit (pkgsuclibc) fetchurl;
+    aclSupport = false;
+  })).crossDrv;
+  
+  curlMinimal = (pkgs.curl.override {
     zlibSupport = false;
     sslSupport = false;
-    linkStatic = true;
+    scpSupport = false;
-  };
+  }).crossDrv;
   
-  bzip2Static = import <nixpkgs/pkgs/tools/compression/bzip2> {
+  busyboxMinimal = (pkgs.busybox.override {
-    stdenv = pkgsuclibc.stdenv;
+    # TBD: uClibc is broken.
-    inherit (pkgsuclibc) fetchurl;
+    # useUclibc = true;
-    linkStatic = true;
+    enableStatic = true;
-  };
+    enableMinimal = true;
+    extraConfig = ''
+      CONFIG_ASH y
+      CONFIG_ASH_BUILTIN_ECHO y
+      CONFIG_ASH_BUILTIN_TEST y
+      CONFIG_ASH_OPTIMIZE_FOR_SIZE y
+      CONFIG_MKDIR y
+      CONFIG_TAR y
+      CONFIG_UNXZ y
+    '';
+  }).crossDrv;
   
   inherit pkgs;
 
@@ -128,6 +139,8 @@ rec {
         cp -d ${glibc}/lib/libpthread*.so* $out/lib
         cp -d ${glibc}/lib/libnsl*.so* $out/lib
         cp -d ${glibc}/lib/libutil*.so* $out/lib
+        cp -d ${glibc}/lib/libnss*.so* $out/lib
+        cp -d ${glibc}/lib/libresolv*.so* $out/lib
         cp -d ${glibc}/lib/crt?.o $out/lib
         
         cp -rL ${glibc}/include $out
@@ -140,7 +153,7 @@ rec {
         mv $out/include $out/include-glibc
         
         # Copy coreutils, bash, etc.
-        cp ${coreutils_}/bin/* $out/bin
+        cp ${coreutilsMinimal}/bin/* $out/bin
         (cd $out/bin && rm vdir dir sha*sum pinky factor pathchk runcon shuf who whoami shred users)
         
         cp ${bash}/bin/bash $out/bin
@@ -148,7 +161,7 @@ rec {
         cp ${findutils}/bin/xargs $out/bin
         cp -d ${diffutils}/bin/* $out/bin
         cp -d ${gnused}/bin/* $out/bin
-        cp -d ${gnugrep}/bin/* $out/bin
+        cp -d ${gnugrep}/bin/grep $out/bin
         cp ${gawk}/bin/gawk $out/bin
         cp -d ${gawk}/bin/awk $out/bin
         cp ${gnutar}/bin/tar $out/bin
@@ -157,17 +170,18 @@ rec {
         cp -d ${gnumake}/bin/* $out/bin
         cp -d ${patch}/bin/* $out/bin
         cp ${patchelf}/bin/* $out/bin
-        cp ${replace}/bin/* $out/bin
+        cp ${curlMinimal}/bin/curl $out/bin
+        cp -d ${curlMinimal}/lib/libcurl* $out/lib
 
         cp -d ${gnugrep.pcre.crossDrv}/lib/libpcre*.so* $out/lib # needed by grep
         
         # Copy what we need of GCC.
-        cp -d ${gcc.cc.crossDrv}/bin/gcc $out/bin
+        cp -d ${gcc}/bin/gcc $out/bin
-        cp -d ${gcc.cc.crossDrv}/bin/cpp $out/bin
+        cp -d ${gcc}/bin/cpp $out/bin
-        cp -d ${gcc.cc.crossDrv}/bin/g++ $out/bin
+        cp -d ${gcc}/bin/g++ $out/bin
-        cp -d ${gcc.cc.crossDrv}/lib*/libgcc_s.so* $out/lib
+        cp -d ${gcc}/lib*/libgcc_s.so* $out/lib
-        cp -d ${gcc.cc.crossDrv}/lib*/libstdc++.so* $out/lib
+        cp -d ${gcc}/lib*/libstdc++.so* $out/lib
-        cp -rd ${gcc.cc.crossDrv}/lib/gcc $out/lib
+        cp -rd ${gcc}/lib/gcc $out/lib
         chmod -R u+w $out/lib
         rm -f $out/lib/gcc/*/*/include*/linux
         rm -f $out/lib/gcc/*/*/include*/sound
@@ -175,26 +189,31 @@ rec {
         rm -f $out/lib/gcc/*/*/include-fixed/asm
         rm -rf $out/lib/gcc/*/*/plugin
         #rm -f $out/lib/gcc/*/*/*.a
-        cp -rd ${gcc.cc.crossDrv}/libexec/* $out/libexec
+        cp -rd ${gcc}/libexec/* $out/libexec
+        chmod -R u+w $out/libexec
+        rm -rf $out/libexec/gcc/*/*/plugin
         mkdir $out/include
-        cp -rd ${gcc.cc.crossDrv}/include/c++ $out/include
+        cp -rd ${gcc}/include/c++ $out/include
         chmod -R u+w $out/include
         rm -rf $out/include/c++/*/ext/pb_ds
         rm -rf $out/include/c++/*/ext/parallel
 
-        cp -d ${gmp}/lib/libgmp*.so* $out/lib
+        cp -d ${gmpxx}/lib/libgmp*.so* $out/lib
         cp -d ${mpfr}/lib/libmpfr*.so* $out/lib
-        cp -d ${cloogppl}/lib/libcloog*.so* $out/lib
-        cp -d ${cloog}/lib/libcloog*.so* $out/lib
-        cp -d ${ppl}/lib/libppl*.so* $out/lib
-        cp -d ${isl}/lib/libisl*.so* $out/lib
         cp -d ${libmpc}/lib/libmpc*.so* $out/lib
         cp -d ${zlib}/lib/libz.so* $out/lib
+        cp -d ${libelf}/lib/libelf.so* $out/lib
+        
+        # TBD: Why are these needed for cross but not native tools?
+        cp -d ${cloogppl}/lib/libcloog*.so* $out/lib
+        cp -d ${cloog}/lib/libcloog*.so* $out/lib
+        cp -d ${isl}/lib/libisl*.so* $out/lib
         
         # Copy binutils.
         for i in as ld ar ranlib nm strip readelf objdump; do
           cp ${binutils}/bin/$i $out/bin
         done
+        cp -d ${binutils}/lib/lib*.so* $out/lib
 
         chmod -R u+w $out
         
@@ -209,26 +228,16 @@ rec {
         nuke-refs $out/bin/*
         nuke-refs $out/lib/*
         nuke-refs $out/libexec/gcc/*/*/*
-        nuke-refs $out/libexec/gcc/*/*/*/*
 
         mkdir $out/.pack
         mv $out/* $out/.pack
         mv $out/.pack $out/pack
 
         mkdir $out/on-server
-        (cd $out/pack && (find | cpio -o -H newc)) | bzip2 > $out/on-server/bootstrap-tools.cpio.bz2
+        tar cvfJ $out/on-server/bootstrap-tools.tar.xz -C $out/pack .
-
+        cp ${busyboxMinimal}/bin/busybox $out/on-server
-        mkdir $out/in-nixpkgs
+        chmod u+w $out/on-server/busybox
-        cp ${klibc}/lib/klibc/bin.static/sh $out/in-nixpkgs
+        nuke-refs $out/on-server/busybox
-        cp ${klibc}/lib/klibc/bin.static/cpio $out/in-nixpkgs
-        cp ${klibc}/lib/klibc/bin.static/mkdir $out/in-nixpkgs
-        cp ${klibc}/lib/klibc/bin.static/ln $out/in-nixpkgs
-        cp ${curlStatic.crossDrv}/bin/curl $out/in-nixpkgs
-        cp ${bzip2Static.crossDrv}/bin/bzip2 $out/in-nixpkgs
-        chmod u+w $out/in-nixpkgs/*
-        $crossConfig-strip $out/in-nixpkgs/*
-        nuke-refs $out/in-nixpkgs/*
-        bzip2 $out/in-nixpkgs/curl
       ''; # */
 
       # The result should not contain any references (store paths) so
@@ -237,33 +246,10 @@ rec {
       allowedReferences = [];
     };
 
-  
+}
-  unpack =
+
-    
+); in {
-    stdenv.mkDerivation {
+    armv5tel = buildFor "armv5tel";
-      name = "unpack";
+    armv6l = buildFor "armv6l";
-
+    armv7l = buildFor "armv7l";
-      buildCommand = ''
-        ${build}/in-nixpkgs/mkdir $out
-        ${build}/in-nixpkgs/bzip2 -d < ${build}/on-server/bootstrap-tools.cpio.bz2 | (cd $out && ${build}/in-nixpkgs/cpio -V -i)
-
-        for i in $out/bin/* $out/libexec/gcc/*/*/*; do
-            echo patching $i
-            if ! test -L $i; then
-                LD_LIBRARY_PATH=$out/lib $out/lib/ld-linux*.so.2 \
-                    $out/bin/patchelf --set-interpreter $out/lib/ld-linux*.so.2 --set-rpath $out/lib --force-rpath $i
-            fi
-        done
-
-        # Fix the libc linker script.
-        for i in $out/lib/libc.so; do
-            cat $i | sed "s|/nix/store/e*-[^/]*/|$out/|g" > $i.tmp
-            mv $i.tmp $i
-        done
-      ''; # " */
-
-      allowedReferences = ["out"];
-    };
-
-    
 }

pkgs/stdenv/linux/make-bootstrap-tools.nix

@@ -154,92 +154,12 @@ rec {
       allowedReferences = [];
     };
 
-
+  test = ((import ./default.nix) {
-  unpack =
-
-    derivation {
-      name = "unpack";
     inherit system;
-      builder = "${build}/on-server/busybox";
-      args = [ "ash" "-e" "-c" "eval \"$buildCommand\"" ];
     
-      buildCommand = ''
+    customBootstrapFiles = {
-        export PATH=${build}/on-server:$out/bin
+      busybox = "${build}/on-server/busybox";
-
+      bootstrapTools = "${build}/on-server/bootstrap-tools.tar.xz";
-        busybox mkdir $out
-        < ${build}/on-server/bootstrap-tools.tar.xz busybox unxz | busybox tar x -C $out
-
-        for i in $out/bin/* $out/libexec/gcc/*/*/*; do
-            if [ -L "$i" ]; then continue; fi
-            if [ -z "''${i##*/liblto*}" ]; then continue; fi
-            echo patching "$i"
-            LD_LIBRARY_PATH=$out/lib $out/lib/ld-linux*.so.2 \
-                $out/bin/patchelf --set-interpreter $out/lib/ld-linux*.so.2 --set-rpath $out/lib --force-rpath "$i"
-        done
-
-        for i in $out/lib/libpcre*; do
-            if [ -L "$i" ]; then continue; fi
-            echo patching "$i"
-            $out/bin/patchelf --set-rpath $out/lib --force-rpath "$i"
-        done
-
-        # Fix the libc linker script.
-        for i in $out/lib/libc.so; do
-            cat $i | sed "s|/nix/store/e*-[^/]*/|$out/|g" > $i.tmp
-            mv $i.tmp $i
-        done
-      ''; # " */
-
-      allowedReferences = ["out"];
     };
-
+  }).testBootstrapTools;
-
-  test =
-
-    derivation {
-      name = "test";
-      inherit system;
-      builder = "${build}/on-server/busybox";
-      args = [ "ash" "-e" "-c" "eval \"$buildCommand\"" ];
-
-      buildCommand = ''
-        export PATH=${unpack}/bin
-        ls -l
-        mkdir $out
-        mkdir $out/bin
-        sed --version
-        find --version
-        diff --version
-        patch --version
-        make --version
-        awk --version
-        grep --version
-        gcc --version
-        curl --version
-
-        ldlinux=$(echo ${unpack}/lib/ld-linux*.so.2)
-
-        export CPP="cpp -idirafter ${unpack}/include-glibc -B${unpack}"
-        export CC="gcc -idirafter ${unpack}/include-glibc -B${unpack} -Wl,-dynamic-linker,$ldlinux -Wl,-rpath,${unpack}/lib"
-        export CXX="g++ -idirafter ${unpack}/include-glibc -B${unpack} -Wl,-dynamic-linker,$ldlinux -Wl,-rpath,${unpack}/lib"
-
-        echo '#include <stdio.h>' >> foo.c
-        echo '#include <limits.h>' >> foo.c
-        echo 'int main() { printf("Hello World\\n"); return 0; }' >> foo.c
-        $CC -o $out/bin/foo foo.c
-        $out/bin/foo
-
-        echo '#include <iostream>' >> bar.cc
-        echo 'int main() { std::cout << "Hello World\\n"; }' >> bar.cc
-        $CXX -v -o $out/bin/bar bar.cc
-        $out/bin/bar
-
-        tar xvf ${hello.src}
-        cd hello-*
-        ./configure --prefix=$out
-        make
-        make install
-      ''; # */
-    };
-
 }

pkgs/stdenv/linux/scripts/unpack-bootstrap-tools-arm.sh

@@ -1,56 +0,0 @@
-set -e
-
-# Unpack the bootstrap tools tarball.
-echo Unpacking the bootstrap tools...
-$mkdir $out
-$bzip2 -d < $tarball | (cd $out && $cpio -V -i)
-
-# Set the ELF interpreter / RPATH in the bootstrap binaries.
-echo Patching the bootstrap tools...
-
-# On x86_64, ld-linux-x86-64.so.2 barfs on patchelf'ed programs.  So
-# use a copy of patchelf.
-LD_LIBRARY_PATH=$out/lib $out/lib/ld-linux*.so.? $out/bin/cp $out/bin/patchelf .
-
-for i in $out/bin/* $out/libexec/gcc/*/*/* $out/lib/librt*; do
-    if test ${i%.la} != $i; then continue; fi
-    if test ${i%*.so*} != $i; then continue; fi
-    if ! test -f $i; then continue; fi
-    if test -L $i; then continue; fi
-    echo patching $i
-    LD_LIBRARY_PATH=$out/lib $out/lib/ld-linux*.so.? \
-        $out/bin/patchelf --set-interpreter $out/lib/ld-linux*.so.? --set-rpath $out/lib --force-rpath $i
-    LD_LIBRARY_PATH=$out/lib $out/lib/ld-linux*.so.? \
-        $out/bin/patchelf --set-interpreter $out/lib/ld-linux*.so.? --set-rpath $out/lib --force-rpath $i
-done
-for i in $out/lib/librt* $out/lib/libcloog* $out/lib/libppl* $out/lib/libgmp*; do
-    if ! test -f $i; then continue; fi
-    if test -L $i; then continue; fi
-    echo patching $i
-    LD_LIBRARY_PATH=$out/lib $out/lib/ld-linux*.so.? \
-        $out/bin/patchelf --set-rpath $out/lib --force-rpath $i
-    LD_LIBRARY_PATH=$out/lib $out/lib/ld-linux*.so.? \
-        $out/bin/patchelf --set-rpath $out/lib --force-rpath $i
-done
-
-# Fix the libc linker script.
-export PATH=$out/bin
-cat $out/lib/libc.so | sed "s|/nix/store/e*-[^/]*/|$out/|g" > $out/lib/libc.so.tmp
-mv $out/lib/libc.so.tmp $out/lib/libc.so
-cat $out/lib/libpthread.so | sed "s|/nix/store/e*-[^/]*/|$out/|g" > $out/lib/libpthread.so.tmp
-mv $out/lib/libpthread.so.tmp $out/lib/libpthread.so
-
-# Provide some additional symlinks.
-ln -s bash $out/bin/sh
-ln -s bzip2 $out/bin/bunzip2
-
-# Mimic the gunzip script as in gzip installations
-cat > $out/bin/gunzip <<EOF
-#!$out/bin/sh
-exec $out/bin/gzip -d "\$@"
-EOF
-chmod +x $out/bin/gunzip
-
-# fetchurl needs curl.
-bzip2 -d < $curl > $out/bin/curl
-chmod +x $out/bin/curl

pkgs/stdenv/linux/scripts/unpack-bootstrap-tools.sh

@@ -22,11 +22,11 @@ for i in $out/bin/* $out/libexec/gcc/*/*/*; do
     if [ -L "$i" ]; then continue; fi
     if [ -z "${i##*/liblto*}" ]; then continue; fi
     echo patching "$i"
-    LD_LIBRARY_PATH=$out/lib $out/lib/ld-linux*.so.2 \
+    LD_LIBRARY_PATH=$out/lib $LD_BINARY \
         $out/bin/patchelf --set-interpreter $LD_BINARY --set-rpath $out/lib --force-rpath "$i"
 done
 
-for i in $out/lib/libpcre*; do
+for i in $out/lib/librt-*.so $out/lib/libpcre*; do
     if [ -L "$i" ]; then continue; fi
     echo patching "$i"
     $out/bin/patchelf --set-rpath $out/lib --force-rpath "$i"

pkgs/top-level/all-packages.nix

@@ -72,6 +72,7 @@ let
       platforms = (import ./platforms.nix);
     in
       if system == "armv6l-linux" then platforms.raspberrypi
+      else if system == "armv7l-linux" then platforms.beaglebone
       else if system == "armv5tel-linux" then platforms.sheevaplug
       else if system == "mips64el-linux" then platforms.fuloong2f_n32
       else if system == "x86_64-linux" then platforms.pc64
@@ -8501,7 +8502,7 @@ let
     cross = assert crossSystem != null; crossSystem;
   });
 
-  linuxHeaders26Cross = forceNativeDrv (import ../os-specific/linux/kernel-headers/2.6.32.nix {
+  linuxHeaders26Cross = forceNativeDrv (import ../os-specific/linux/kernel-headers/3.12.nix {
     inherit stdenv fetchurl perl;
     cross = assert crossSystem != null; crossSystem;
   });

pkgs/top-level/platforms.nix

@@ -372,4 +372,21 @@ rec {
     uboot = null;
     gcc.arch = "loongson2f";
   };
+  
+  beaglebone = {
+    name = "beaglebone";
+    kernelMajor = "2.6";
+    kernelHeadersBaseConfig = "omap2plus_defconfig";
+    kernelBaseConfig = "omap2plus_defconfig";
+    kernelArch = "arm";
+    kernelAutoModules = false;
+    kernelExtraConfig = ""; # TBD kernel config
+    kernelTarget = "zImage";
+    uboot = null;
+    gcc = {
+      arch = "armv7-a";
+      fpu = "vfpv3-d16";
+      float = "hard";
+    };
+  };
 }