[backport release-24.11] systemtap-sdt: init (#393244)

Author: lf-

pkgs/by-name/sy/systemtap-sdt/package.nix

@@ -0,0 +1,10 @@
+{ linuxPackages }:
+linuxPackages.systemtap.override {
+  withStap = false;
+}
+// {
+  meta = linuxPackages.systemtap.meta // {
+    description = "Build USDT tracepoints with the 'dtrace' executable on Linux";
+    mainProgram = "dtrace";
+  };
+}

pkgs/development/libraries/glib/default.nix

@@ -46,7 +46,7 @@ let
                   else if (stdenv.hostPlatform.extensions.library == ".dll") then "2.0-0.dll"
                   else "2.0-0.lib";
 
-  systemtap' = buildPackages.linuxPackages.systemtap.override { withStap = false; };
+  systemtap' = buildPackages.systemtap-sdt;
   withDtrace =
     lib.meta.availableOn stdenv.buildPlatform systemtap' &&
     # dtrace support requires sys/sdt.h header

pkgs/development/tools/profiling/systemtap/default.nix

@@ -11,7 +11,7 @@
   gnumake,
   python3,
   nixosTests,
-  withStap ? true, # avoid cyclic dependency with glib
+  withStap ? true, # avoid cyclic dependency with glib, reduce closure size substantially
 }:
 
 let