From 10465d1e16fe8679d3ca7dfbd1013b4629d9bfeb Mon Sep 17 00:00:00 2001
From: 1000teslas <47207223+1000teslas@users.noreply.github.com>
Date: Tue, 17 Aug 2021 00:12:38 +1000
Subject: [PATCH 1/4] maintainers: add 1000teslas

---
 maintainers/maintainer-list.nix | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index 0bcaf2e4367b..50e7e618a049 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -80,6 +80,12 @@
     githubId = 791309;
     name = "Jan Hrnko";
   };
+  _1000teslas = {
+    name = "Kevin Tran";
+    email = "47207223+1000teslas@users.noreply.github.com";
+    github = "1000teslas";
+    githubId = 47207223;
+  };
   _3699n = {
     email = "nicholas@nvk.pm";
     github = "3699n";

From 979d0bbe72c6ba0a9b97cb2a769f5622354dc2f3 Mon Sep 17 00:00:00 2001
From: 1000teslas <47207223+1000teslas@users.noreply.github.com>
Date: Tue, 17 Aug 2021 00:14:28 +1000
Subject: [PATCH 2/4] rustc-demangle: init at 0.1.20

---
 .../rustc-demangle/add-Cargo.lock.patch       | 73 +++++++++++++++++++
 .../libraries/rustc-demangle/default.nix      | 34 +++++++++
 2 files changed, 107 insertions(+)
 create mode 100644 pkgs/development/libraries/rustc-demangle/add-Cargo.lock.patch
 create mode 100644 pkgs/development/libraries/rustc-demangle/default.nix

diff --git a/pkgs/development/libraries/rustc-demangle/add-Cargo.lock.patch b/pkgs/development/libraries/rustc-demangle/add-Cargo.lock.patch
new file mode 100644
index 000000000000..66e8bead8a26
--- /dev/null
+++ b/pkgs/development/libraries/rustc-demangle/add-Cargo.lock.patch
@@ -0,0 +1,73 @@
+diff --git a/Cargo.lock b/Cargo.lock
+new file mode 100644
+index 0000000..0268b3b
+--- /dev/null
++++ b/Cargo.lock
+@@ -0,0 +1,67 @@
++# This file is automatically @generated by Cargo.
++# It is not intended for manual editing.
++version = 3
++
++[[package]]
++name = "arbitrary"
++version = "1.0.1"
++source = "registry+https://github.com/rust-lang/crates.io-index"
++checksum = "237430fd6ed3740afe94eefcc278ae21e050285be882804e0d6e8695f0c94691"
++
++[[package]]
++name = "cc"
++version = "1.0.69"
++source = "registry+https://github.com/rust-lang/crates.io-index"
++checksum = "e70cc2f62c6ce1868963827bd677764c62d07c3d9a3e1fb1177ee1a9ab199eb2"
++
++[[package]]
++name = "compiler_builtins"
++version = "0.1.49"
++source = "registry+https://github.com/rust-lang/crates.io-index"
++checksum = "20b1438ef42c655665a8ab2c1c6d605a305f031d38d9be689ddfef41a20f3aa2"
++
++[[package]]
++name = "libfuzzer-sys"
++version = "0.4.2"
++source = "registry+https://github.com/rust-lang/crates.io-index"
++checksum = "36a9a84a6e8b55dfefb04235e55edb2b9a2a18488fcae777a6bdaa6f06f1deb3"
++dependencies = [
++ "arbitrary",
++ "cc",
++ "once_cell",
++]
++
++[[package]]
++name = "once_cell"
++version = "1.8.0"
++source = "registry+https://github.com/rust-lang/crates.io-index"
++checksum = "692fcb63b64b1758029e0a96ee63e049ce8c5948587f2f7208df04625e5f6b56"
++
++[[package]]
++name = "rustc-demangle"
++version = "0.1.20"
++dependencies = [
++ "compiler_builtins",
++ "rustc-std-workspace-core",
++]
++
++[[package]]
++name = "rustc-demangle-capi"
++version = "0.1.0"
++dependencies = [
++ "rustc-demangle",
++]
++
++[[package]]
++name = "rustc-demangle-fuzz"
++version = "0.0.0"
++dependencies = [
++ "libfuzzer-sys",
++ "rustc-demangle",
++]
++
++[[package]]
++name = "rustc-std-workspace-core"
++version = "1.0.0"
++source = "registry+https://github.com/rust-lang/crates.io-index"
++checksum = "1956f5517128a2b6f23ab2dadf1a976f4f5b27962e7724c2bf3d45e539ec098c"
diff --git a/pkgs/development/libraries/rustc-demangle/default.nix b/pkgs/development/libraries/rustc-demangle/default.nix
new file mode 100644
index 000000000000..be02fedfde71
--- /dev/null
+++ b/pkgs/development/libraries/rustc-demangle/default.nix
@@ -0,0 +1,34 @@
+{ rustPlatform, fetchFromGitHub, rust, lib, stdenv }:
+
+rustPlatform.buildRustPackage rec {
+  pname = "rustc-demangle";
+  version = "0.1.20";
+
+  src = fetchFromGitHub {
+    owner = "alexcrichton";
+    repo = pname;
+    rev = version;
+    sha256 = "sha256-elxclyuLmr3N66s+pR4/6OU98k1oXI2wKVJtzWPY8FI=";
+  };
+
+  cargoPatches = [
+    # generated using `cargo generate-lockfile` since repo is missing lockfile
+    ./add-Cargo.lock.patch
+  ];
+  cargoSha256 = "sha256-1tW5TOap5MstxTXAFij3IB8TIpI+FryEX9TXlVXjRl4=";
+  cargoBuildFlags = "-p rustc-demangle-capi";
+  postInstall = ''
+    mkdir -p $out/lib
+    cp target/${rust.toRustTargetSpec stdenv.hostPlatform}/release/librustc_demangle.so $out/lib
+    cp -R crates/capi/include $out
+  '';
+
+  meta = with lib; {
+    description = "Rust symbol demangling";
+    homepage = "https://github.com/alexcrichton/rustc-demangle";
+    license = with licenses; [ asl20 mit ];
+    # upstream supports other platforms, but maintainer can only test on linux
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ _1000teslas ];
+  };
+}

From 9533cd493cd728ad726d89cbec1683f0296f4877 Mon Sep 17 00:00:00 2001
From: 1000teslas <47207223+1000teslas@users.noreply.github.com>
Date: Tue, 17 Aug 2021 00:15:24 +1000
Subject: [PATCH 3/4] kddockwidgets: init at 1.4.0

---
 .../libraries/kddockwidgets/default.nix       | 29 +++++++++++++++++++
 pkgs/top-level/all-packages.nix               |  4 +++
 2 files changed, 33 insertions(+)
 create mode 100644 pkgs/development/libraries/kddockwidgets/default.nix

diff --git a/pkgs/development/libraries/kddockwidgets/default.nix b/pkgs/development/libraries/kddockwidgets/default.nix
new file mode 100644
index 000000000000..b63bdc979c42
--- /dev/null
+++ b/pkgs/development/libraries/kddockwidgets/default.nix
@@ -0,0 +1,29 @@
+{ lib
+, mkDerivation
+, fetchFromGitHub
+, cmake
+, qtbase
+, qtx11extras
+}:
+
+mkDerivation rec {
+  pname = "KDDockWidgets";
+  version = "1.4.0";
+
+  src = fetchFromGitHub {
+    owner = "KDAB";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-lgNRuRoJhBw0n/Hb58uxpa+4aXoOrK4bRldtIXYIKLI=";
+  };
+
+  nativeBuildInputs = [ cmake ];
+  buildInputs = [ qtbase qtx11extras ];
+
+  meta = with lib; {
+    description = "KDAB's Dock Widget Framework for Qt";
+    homepage = "https://www.kdab.com/development-resources/qt-tools/kddockwidgets";
+    license = with licenses; [ gpl2Only gpl3Only ];
+    maintainers = with maintainers; [ _1000teslas ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index cd2f731315d5..b80f14f87001 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -16328,6 +16328,8 @@ with pkgs;
 
   judy = callPackage ../development/libraries/judy { };
 
+  kddockwidgets = libsForQt5.callPackage ../development/libraries/kddockwidgets { };
+
   keybinder = callPackage ../development/libraries/keybinder {
     automake = automake111x;
     lua = lua5_1;
@@ -18551,6 +18553,8 @@ with pkgs;
 
   rubberband = callPackage ../development/libraries/rubberband { };
 
+  rustc-demangle = callPackage ../development/libraries/rustc-demangle { };
+
   s2geometry = callPackage ../development/libraries/s2geometry { };
 
   /*  This package references ghc844, which we no longer have. Unfortunately, I

From cd9582b575884ce2c4b873c56b63316fae5b81d9 Mon Sep 17 00:00:00 2001
From: 1000teslas <47207223+1000teslas@users.noreply.github.com>
Date: Tue, 17 Aug 2021 00:18:59 +1000
Subject: [PATCH 4/4] hotspot: add rustc-demangle and zstd support

---
 .../tools/analysis/hotspot/default.nix        | 53 ++++++++++++-------
 1 file changed, 34 insertions(+), 19 deletions(-)

diff --git a/pkgs/development/tools/analysis/hotspot/default.nix b/pkgs/development/tools/analysis/hotspot/default.nix
index 94b440f58c8d..5fede1aee5c5 100644
--- a/pkgs/development/tools/analysis/hotspot/default.nix
+++ b/pkgs/development/tools/analysis/hotspot/default.nix
@@ -1,18 +1,22 @@
-{ lib,
-  mkDerivation,
-  cmake,
-  elfutils,
-  extra-cmake-modules,
-  fetchFromGitHub,
-  kconfigwidgets,
-  ki18n,
-  kio,
-  kitemmodels,
-  kitemviews,
-  kwindowsystem,
-  libelf,
-  qtbase,
-  threadweaver,
+{ lib
+, mkDerivation
+, cmake
+, elfutils
+, extra-cmake-modules
+, fetchFromGitHub
+, kconfigwidgets
+, ki18n
+, kio
+, kitemmodels
+, kitemviews
+, kwindowsystem
+, libelf
+, qtbase
+, threadweaver
+, qtx11extras
+, zstd
+, kddockwidgets
+, rustc-demangle
 }:
 
 mkDerivation rec {
@@ -27,10 +31,12 @@ mkDerivation rec {
     fetchSubmodules = true;
   };
 
-  nativeBuildInputs = [ cmake ];
+  nativeBuildInputs = [
+    cmake
+    extra-cmake-modules
+  ];
   buildInputs = [
     elfutils
-    extra-cmake-modules
     kconfigwidgets
     ki18n
     kio
@@ -40,6 +46,10 @@ mkDerivation rec {
     libelf
     qtbase
     threadweaver
+    qtx11extras
+    zstd
+    kddockwidgets
+    rustc-demangle
   ];
 
   # hotspot checks for the presence of third party libraries'
@@ -47,9 +57,14 @@ mkDerivation rec {
   # submodules; but Nix clones them and removes .git (for reproducibility).
   # So we need to fake their existence here.
   postPatch = ''
-    mkdir -p 3rdparty/perfparser/.git
+    mkdir -p 3rdparty/{perfparser,PrefixTickLabels}/.git
   '';
 
+  cmakeFlags = [
+    "-DRUSTC_DEMANGLE_INCLUDE_DIR=${rustc-demangle}/include"
+    "-DRUSTC_DEMANGLE_LIBRARY=${rustc-demangle}/lib/librustc_demangle.so"
+  ];
+
   meta = {
     description = "A GUI for Linux perf";
     longDescription = ''
@@ -58,7 +73,7 @@ mkDerivation rec {
       then displays the result in a graphical way.
     '';
     homepage = "https://github.com/KDAB/hotspot";
-    license = with lib.licenses; [ gpl2 gpl3 ];
+    license = with lib.licenses; [ gpl2Only gpl3Only ];
     platforms = lib.platforms.linux;
     maintainers = with lib.maintainers; [ nh2 ];
   };