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/development/tools/profiling/systemtap/default.nix

@@ -0,0 +1,58 @@
+{ lib, fetchgit, pkg-config, gettext, runCommand, makeWrapper
+, cpio, elfutils, kernel, gnumake, python3
+}:
+
+let
+  ## fetchgit info
+  url = "git://sourceware.org/git/systemtap.git";
+  rev = "release-${version}";
+  sha256 = "sha256-3LgqMBCnUG2UmsekaIvV43lBpSPEocEXmFV9WpE7wE0=";
+  version = "4.5";
+
+  inherit (kernel) stdenv;
+
+  ## stap binaries
+  stapBuild = stdenv.mkDerivation {
+    pname = "systemtap";
+    inherit version;
+    src = fetchgit { inherit url rev sha256; };
+    nativeBuildInputs = [ pkg-config cpio python3 python3.pkgs.setuptools ];
+    buildInputs = [ elfutils gettext ];
+    enableParallelBuilding = true;
+  };
+
+  ## a kernel build dir as expected by systemtap
+  kernelBuildDir = runCommand "kbuild-${kernel.version}-merged" { } ''
+    mkdir -p $out
+    for f in \
+        ${kernel}/System.map \
+        ${kernel.dev}/vmlinux \
+        ${kernel.dev}/lib/modules/${kernel.modDirVersion}/build/{*,.*}
+    do
+      ln -s $(readlink -f $f) $out
+    done
+  '';
+
+  pypkgs = with python3.pkgs; makePythonPath [ pyparsing ];
+
+in runCommand "systemtap-${kernel.version}-${version}" {
+  inherit stapBuild kernelBuildDir;
+  nativeBuildInputs = [ makeWrapper ];
+  meta = {
+    homepage = "https://sourceware.org/systemtap/";
+    description = "Provides a scripting language for instrumentation on a live kernel plus user-space";
+    license = lib.licenses.gpl2;
+    platforms = lib.platforms.linux;
+  };
+} ''
+  mkdir -p $out/bin
+  for bin in $stapBuild/bin/*; do
+    ln -s $bin $out/bin
+  done
+  rm $out/bin/stap $out/bin/dtrace
+  makeWrapper $stapBuild/bin/stap $out/bin/stap \
+    --add-flags "-r $kernelBuildDir" \
+    --prefix PATH : ${lib.makeBinPath [ stdenv.cc.cc stdenv.cc.bintools elfutils gnumake ]}
+  makeWrapper $stapBuild/bin/dtrace $out/bin/dtrace \
+    --prefix PYTHONPATH : ${pypkgs}
+''