uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/os-specific/linux/klibc/default.nix

@@ -0,0 +1,53 @@
+{ lib, stdenv, fetchurl, buildPackages, linuxHeaders, perl }:
+
+let
+  commonMakeFlags = [
+    "prefix=$(out)"
+    "SHLIBDIR=$(out)/lib"
+  ];
+in
+
+stdenv.mkDerivation rec {
+  pname = "klibc";
+  version = "2.0.10";
+
+  src = fetchurl {
+    url = "mirror://kernel/linux/libs/klibc/2.0/klibc-${version}.tar.xz";
+    sha256 = "sha256-ZidT2oiJ50TfwNtutAIcM3fufvjtZtfVd2X4yeJZOc0=";
+  };
+
+  patches = [ ./no-reinstall-kernel-headers.patch ];
+
+  depsBuildBuild = [ buildPackages.stdenv.cc ];
+  nativeBuildInputs = [ perl ];
+  strictDeps = true;
+
+  hardeningDisable = [ "format" "stackprotector" ];
+
+  makeFlags = commonMakeFlags ++ [
+    "KLIBCARCH=${stdenv.hostPlatform.linuxArch}"
+    "KLIBCKERNELSRC=${linuxHeaders}"
+  ] # TODO(@Ericson2314): We now can get the ABI from
+    # `stdenv.hostPlatform.parsed.abi`, is this still a good idea?
+    ++ lib.optional (stdenv.hostPlatform.linuxArch == "arm") "CONFIG_AEABI=y"
+    ++ lib.optional (stdenv.hostPlatform != stdenv.buildPlatform) "CROSS_COMPILE=${stdenv.cc.targetPrefix}";
+
+  # Install static binaries as well.
+  postInstall = ''
+    dir=$out/lib/klibc/bin.static
+    mkdir $dir
+    cp $(find $(find . -name static) -type f ! -name "*.g" -a ! -name ".*") $dir/
+
+    for file in ${linuxHeaders}/include/*; do
+      ln -sv $file $out/lib/klibc/include
+    done
+  '';
+
+  meta = {
+    description = "Minimalistic libc subset for initramfs usage";
+    homepage = "https://kernel.org/pub/linux/libs/klibc/";
+    maintainers = with lib.maintainers; [ fpletz ];
+    license = lib.licenses.bsd3;
+    platforms = lib.platforms.linux;
+  };
+}

pkgs/os-specific/linux/klibc/no-reinstall-kernel-headers.patch

@@ -0,0 +1,11 @@
+diff -Naur klibc-2.0.3-orig/scripts/Kbuild.install klibc-2.0.3/scripts/Kbuild.install
+--- klibc-2.0.3-orig/scripts/Kbuild.install	2013-12-03 13:53:46.000000000 -0500
++++ klibc-2.0.3/scripts/Kbuild.install	2014-01-04 18:17:09.342609021 -0500
+@@ -95,7 +95,6 @@
+ 	$(Q)mkdir -p $(INSTALLROOT)$(INSTALLDIR)/$(KCROSS)include
+ 	$(Q)mkdir -p $(INSTALLROOT)$(INSTALLDIR)/$(KCROSS)lib
+ 	$(Q)mkdir -p $(INSTALLROOT)$(INSTALLDIR)/$(KCROSS)bin
+-	$(Q)cp -rfL $(KLIBCKERNELSRC)/include/. $(INSTALLROOT)$(INSTALLDIR)/$(KCROSS)include/.
+ 	$(Q)cp -rf usr/include/. $(INSTALLROOT)$(INSTALLDIR)/$(KCROSS)include/.
+ 	$(Q)chmod -R a+rX $(INSTALLROOT)$(INSTALLDIR)/$(KCROSS)include
+ 	$(Q)$(install-data) $(srctree)/klcc/klcc.1 $(INSTALLROOT)$(mandir)/man1/$(KCROSS)klcc.1

pkgs/os-specific/linux/klibc/shrunk.nix

@@ -0,0 +1,26 @@
+{stdenv, klibc}:
+
+stdenv.mkDerivation {
+  # !!! For now, the name has to be exactly as long as the original
+  # name due to the sed hackery below.  Once patchelf 0.4 is in the
+  # tree, we can do this properly.
+  #name = "${klibc.name}-shrunk";
+  name = klibc.name;
+  buildCommand = ''
+    mkdir -p $out/lib
+    cp -prd ${klibc.out}/lib/klibc/bin $out/
+    cp -p ${klibc.out}/lib/*.so $out/lib/
+    chmod +w $out/*
+    old=$(echo ${klibc.out}/lib/klibc-*.so)
+    new=$(echo $out/lib/klibc-*.so)
+    for i in $out/bin/*; do
+      echo $i
+      sed "s^$old^$new^" -i $i
+      # !!! use patchelf
+      #patchelf --set-interpreter $new $i
+    done
+  ''; # */
+  allowedReferences = ["out"];
+
+  inherit (klibc) meta;
+}