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/misc/igprof/default.nix

@@ -0,0 +1,44 @@
+{lib, stdenv, fetchFromGitHub, libunwind, cmake, pcre, gdb}:
+
+stdenv.mkDerivation rec {
+  version = "5.9.16";
+  pname = "igprof";
+
+  src = fetchFromGitHub {
+    owner = "igprof";
+    repo = "igprof";
+    rev = "v${version}";
+    sha256 = "0rx3mv8zdh9bmcpfbzkib3d52skzfr8600gh5gv21wcsh50jnifx";
+  };
+
+  postPatch = ''
+    substituteInPlace src/igprof --replace libigprof.so $out/lib/libigprof.so
+    '';
+
+  buildInputs = [libunwind gdb pcre];
+  nativeBuildInputs = [cmake];
+  CXXFLAGS = ["-fPIC" "-O2" "-w" "-fpermissive"];
+
+  meta = {
+    broken = (stdenv.isLinux && stdenv.isAarch64);
+    description = "The Ignominous Profiler";
+
+    longDescription = ''
+      IgProf is a fast and light weight profiler. It correctly handles
+      dynamically loaded shared libraries, threads and sub-processes started by
+      the application.  We have used it routinely with large C++ applications
+      consisting of many hundreds of shared libraries and thousands of symbols
+      from millions of source lines of code. It requires no special privileges
+      to run. The performance reports provide full navigable call stacks and
+      can be customised by applying filters. Results from any number of
+      profiling runs can be included. This means you can both dig into the
+      details and see the big picture from combined workloads.
+    '';
+
+    license = lib.licenses.gpl2;
+
+    homepage = "https://igprof.org/";
+    platforms = lib.platforms.linux;
+    maintainers = with lib.maintainers; [ ktf ];
+  };
+}