bundling bcc in nixos

default.nix

{ pkgs
, linux
, clang
, cmake
, llvm
, bison
, flex
, iperf
, python
, llvmPackages
, clangStdenv
, makeWrapper
, ...

}:

clangStdenv.mkDerivation rec {
  name = "bcc";
  kernel = linux;
  version = "bleeding";
  src = pkgs.fetchgit {
    url = https://github.com/iovisor/bcc.git;
    rev = "31571b4f98e9adb27f91b26cdc44f3fa8b2dcfc2";
    sha256 = "18xb0m7bk2zzpsdl4y42z2qkkynqp43kn0j8ql24cmirk5yf6pi3";
  };
  cmakeFlags = "-DBCC_KERNEL_HAS_SOURCE_DIR=1";
  postPatch = ''
    substituteInPlace src/cc/frontends/clang/kbuild_helper.h --replace "/lib/modules" "${kernel.dev}/lib/modules"
  '';

  postInstall = ''
    mkdir $out/bin
    cp $out/share/bcc/tools/* $out/bin/ || true
    for f in $out/bin/*; do
      wrapProgram $f \
        --prefix PYTHONPATH : $out/lib/python2.7/site-packages \
        --prefix LD_LIBRARY_PATH : $out/lib
    done

  '';
  enableParallelBuilding = true;
  nativeBuildInputs = [ clang cmake llvm bison flex iperf python llvmPackages.clang-unwrapped makeWrapper];
  propagatedBuildInputs = [ clang cmake llvm bison flex iperf python llvmPackages.clang-unwrapped ];
}

failure.txt

0ogre:~/git/root/services/pipeline% sudo  result/bin/opensnoop                                                                                                                                       [pipeline:bcc]
In file included from <built-in>:316:
In file included from <command line>:7:
/virtual/include/bcc/helpers.h:25:2: error: "CONFIG_BPF_SYSCALL is undefined, please check your .config or ask your Linux distro to enable this feature"
#error "CONFIG_BPF_SYSCALL is undefined, please check your .config or ask your Linux distro to enable this feature"
 ^
1 error generated.
Traceback (most recent call last):
  File "/nix/store/9sjidfywi5v9djy08mldw53fx2b8gfnx-bcc/bin/.opensnoop-wrapped", line 81, in <module>
    b = BPF(text=bpf_text)
  File "/nix/store/9sjidfywi5v9djy08mldw53fx2b8gfnx-bcc/lib/python2.7/site-packages/bcc/__init__.py", line 165, in __init__
    raise Exception("Failed to compile BPF module %s" % src_file)
Exception: Failed to compile BPF module
1ogre:~/git/root/services/pipeline% zgrep CONFIG_BPF_SYSCALL  /proc/config.gz                                                                                                                        [pipeline:bcc]
CONFIG_BPF_SYSCALL=y