own nix derivation

builder.sh

+cp -r $src/* ./
+
+make
+
+mkdir -p $out/bin/
+cp calc $out/bin/rpn.calculator
\ No newline at end of file

default.nix

-with import (import ./nixpkgs.nix) {};
-stdenv.mkDerivation {
-  name = "rpn-calculator";
-  src = ./.;
-  buildInputs = [ catch2 ];
-  nativeBuildInputs = [ afl ];
-
-  doCheck = true;
-  checkTarget = "run_test";
-
-  installPhase = ''
-    mkdir -p $out
-    find . -executable -type f -exec cp {} $out \;
-  '';
+#with import (import ./nixpkgs.nix) {};
+with import <nixpkgs> {};
+
+
+derivation {
+    name = "build";
+    builder = "${pkgs.bash}/bin/bash";
+    args = [ ./builder.sh ];
+    system = builtins.currentSystem;
+    #PATH="${pkgs.coreutils}/bin/:${pkgs.gcc}/bin/:${pkgs.gnumake}/bin/";
+    PATH=pkgs.lib.strings.concatMapStringsSep ":" (x: x + "/bin") (with pkgs;[coreutils gcc gnumake]);
+    src = ./.;
 }
+
+
+/* pkgs.stdenv.mkDerivation {
+    name = "rpn-calc";
+    src = ./.;
+
+    buildInputs = with pkgs; [ afl ];
+    nativebuildInputs = with pkgs; [ afl ];
+    checkInputs = with pkgs; [ afl ];
+
+    buildPhase = ''
+        make fuzz_calc
+    '';
+
+    installPhase = ''
+        mkdir -p $out/bin
+        cp fuzz_calc $out/bin
+    '';
+} */
\ No newline at end of file

fuzz.nix

+with import <nixpkgs> {};
+
+derivation {
+    name = "fuzz";
+    builder = "${pkgs.bash}/bin/bash";
+    args = [ ./fuzz_seconds.sh ];
+    system = builtins.currentSystem;
+    #PATH="${pkgs.coreutils}/bin/:${pkgs.gcc}/bin/:${pkgs.gnumake}/bin/";
+    PATH=pkgs.lib.strings.concatMapStringsSep ":" (x: x + "/bin") (with pkgs;[coreutils gcc gnumake afl]);
+    src = ./.;
+
+}
\ No newline at end of file

fuzz_seconds.sh

 #!/usr/bin/env bash
 
+cp -r $src/* ./
+make fuzz_calc
+
 fuzz_seconds=${1:-10} # 10 seconds by default
 echo "Going to fuzz for $fuzz_seconds seconds."
 
@@ -10,3 +13,7 @@ afl_pid=$!
 
 sleep $fuzz_seconds
 kill $afl_pid
+
+
+#mkdir -p $out/bin/
+cp -r out/ $out/
\ No newline at end of file

release.nix

-with import (import ./nixpkgs.nix) {};
-
-let
-  rpncalc = import ./default.nix;
-  afl_rpncalc = rpncalc.overrideAttrs (_: {
-    nativeBuildInputs = [ afl ];
-    makeFlags = [ "fuzz_calc" ];
-    doCheck = false;
-  });
-in {
-  inherit rpncalc afl_rpncalc;
-  sanitized = rpncalc.overrideAttrs (_: {
-    CXXFLAGS = "-fsanitize=undefined -fsanitize=address";
-  });
-
-  fuzz_rpncalc = afl_rpncalc.overrideAttrs (o: {
-    nativeBuildInputs = o.nativeBuildInputs ++ [ gnuplot which ];
-    preConfigure = ''
-      patchShebangs fuzz_seconds.sh
-    '';
-    postBuild = ''
-      ./fuzz_seconds.sh 10
-      afl-plot out graph
-    '';
-    installPhase = ''
-      cp -r out $out
-      cp -r graph $out/
-
-      mkdir -p $out/nix-support
-      echo report testlog $out graph/index.html > $out/nix-support/hydra-build-products
-    '';
-  });
-}

sudo

+core tee /proc/sys/kernel/core_pattern