nixpkgs/pkgs/os-specific/linux/trace-cmd/src.nix

{
  url    = "git://git.kernel.org/pub/scm/utils/trace-cmd/trace-cmd.git/";
  rev    = "138c70106835ee0f05879e7f2f46bca8dae7ca99"; # branch: trace-cmd-stable-v2.8
  sha256 = "1grpip7lywf98nsm7ql1d6bgc0ky0672savr8jz3a8hf9ny265nx";
}