diff --git a/nix/sources.json b/nix/sources.json

index ccd79832cc1ff529b6934791b4680b1da2f809b2..9cb8f8d23ee7257293b0e099131dc94b755cf1b3 100644

--- a/nix/sources.json

+++ b/nix/sources.json

@@ -103,6 +103,19 @@ "type": "tarball",

     "url": "https://github.com/embox/embox/archive/ad5ed2947ae7ad68e6b0b0400c1a12d1a5114fa2.tar.gz",

     "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"

 },

• "gef": {

•    "branch": "dev",
  

•    "builtin": false,
  

•    "description": "GEF - GDB Enhanced Features for exploit devs & reversers",
  

•    "homepage": "http://gef.rtfd.io",
  

•    "owner": "hugsy",
  

•    "repo": "gef",
  

•    "rev": "f17bea5301adce271fe307320272346ac733a895",
  

•    "sha256": "0bfwkygyik5sd9kddfs3q8wylxh70yvvapxyg98qjmz1dqv41md1",
  

•    "type": "tarball",
  

•    "url": "https://github.com/hugsy/gef/archive/f17bea5301adce271fe307320272346ac733a895.tar.gz",
  

•    "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
  

• },

 "geofabrik-estonia": {

     "builtin": false,

     "sha256": "1r7f8q4par0jnnfc0v7y0a2zp7xv27lgjwanm99x81ipcncrhq34",

diff --git a/pkgs/default.nix b/pkgs/default.nix

index f836d72c9f0a7972f0eb5d8056a633d8e48a2a59..f57e4d1fe7dd88321a6d6f203f9f5397e7278086 100644

--- a/pkgs/default.nix

+++ b/pkgs/default.nix

@@ -21,6 +21,7 @@ elevation = python3Packages.callPackage ./tools/geo/elevation {

   inherit sources click;

 };

 embox = callPackage ./embox {};

• gef = callPackage ./development/tools/gef {};

 gimgtools = callPackage ./tools/geo/gimgtools {};

 gmaptool = callPackage ./tools/geo/gmaptool {};

 goldendict-dark-theme =

diff --git a/pkgs/development/tools/gef/default.nix b/pkgs/development/tools/gef/default.nix

new file mode 100644

index 0000000000000000000000000000000000000000..8b21ac05900bf5cc649ece623d4be796beb5f191

--- /dev/null

+++ b/pkgs/development/tools/gef/default.nix

@@ -0,0 +1,36 @@

+{ stdenv, fetchFromGitHub, sources, runtimeShell, procps, binutils-unwrapped, bash, python3, gdb }:

+stdenv.mkDerivation rec {

• pname = "gef";

• version = stdenv.lib.substring 0 7 src.rev;

• src = sources.gef;

• postPatch = ''

• substituteInPlace gef.py \

•  --replace "/bin/ps" "ps" \
  

•  --replace "/bin/bash" "${bash}/bin/bash" \
  

•  --replace "/usr/bin/python" "${python3.interpreter}"
  

• '';

• dontBuild = true;

• doCheck = false;

• installPhase = ''

• install -Dm644 gef.py -t $out/share/gef

• echo "source $out/share/gef/gef.py" > $out/share/gef/init-gef

• install -dm755 $out/bin

• cat << EOF > $out/bin/gdb-gef

• #!${runtimeShell}

• export PATH="${stdenv.lib.makeBinPath [ procps binutils-unwrapped ]}:$PATH"

• ${gdb}/bin/gdb -x $out/share/gef/init-gef "$@"

• EOF

• chmod +x $out/bin/gdb-gef

• '';

• meta = with stdenv.lib; {

• inherit (src) description homepage;

• license = licenses.mit;

• platforms = platforms.all;

• maintainers = with maintainers; [ sikmir ];

• };

+}