bpftools 6.6 -> 6.6.8 https://repology.org/project/linux/versions
attrpath: bpftools
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Old version 6.6" not present in master derivation file with contents: { lib, stdenv, linuxHeaders
, libopcodes, libopcodes_2_38
, libbfd, libbfd_2_38
, elfutils, readline
, zlib
, python3, bison, flex
}:

stdenv.mkDerivation rec {
  pname = "bpftools";

  inherit (linuxHeaders) version src;

  separateDebugInfo = true;

  patches = [
    # fix unknown type name '__vector128' on ppc64le
    ./include-asm-types-for-ppc64le.patch
  ];

  nativeBuildInputs = [ python3 bison flex ];
  buildInputs = (if (lib.versionAtLeast version "5.20")
                 then [ libopcodes libbfd ]
                 else [ libopcodes_2_38 libbfd_2_38 ])
    ++ [ elfutils zlib readline ];

  preConfigure = ''
    patchShebangs scripts/bpf_doc.py

    cd tools/bpf
    substituteInPlace ./bpftool/Makefile \
      --replace '/usr/local' "$out" \
      --replace '/usr'       "$out" \
      --replace '/sbin'      '/bin'
  '';

  buildFlags = [ "bpftool" "bpf_asm" "bpf_dbg" ];

  installPhase = ''
    make -C bpftool install
    install -Dm755 -t $out/bin bpf_asm
    install -Dm755 -t $out/bin bpf_dbg
  '';

  meta = with lib; {
    homepage    = "https://github.com/libbpf/bpftool";
    description = "Debugging/program analysis tools for the eBPF subsystem";
    license     = [ licenses.gpl2 licenses.bsd2 ];
    platforms   = platforms.linux;
    maintainers = with maintainers; [ thoughtpolice ];
  };
}