overlays: add `pkgsDebug` for building packages with debug symbols and such
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@ -7,6 +7,7 @@ let
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pkgs = import ./pkgs.nix;
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preferences = import ./preferences.nix;
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cross = import ./cross.nix;
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pkgs-debug = import ./pkgs-debug.nix;
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isCross = prev.stdenv.hostPlatform != prev.stdenv.buildPlatform;
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ifCross = overlay: if isCross then overlay else (_: _: {});
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@ -19,4 +20,5 @@ in
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pkgs
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preferences
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(ifCross cross)
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pkgs-debug
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]
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@ -0,0 +1,156 @@
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(final: prev:
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let
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# bootstrapPnames = [
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# # this probably doesn't actually accomplish anything:
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# # so long as a *single* input to e.g. gcc is omitted from here, then gcc gets recompiled -- even if gcc is in this list.
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# # and then everything which uses gcc also gets recompiled.
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# # gcc has like 200 derivations in its closure -- incl glibc, which we'd like debug symbols for! -- so that's gonna happen one way or another.
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# "autoconf"
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# "automake"
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# "bash"
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# "binutils"
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# "binutils-wrapper"
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# "bison"
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# "bzip2"
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# "cmake-minimal"
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# "coreutils"
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# "diffutils"
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# "docbook-xml"
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# "ed"
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# "expect"
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# "file"
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# "findutils"
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# "gcc"
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# "gcc-wrapper"
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# "gettext"
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# "gmp"
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# "gnugrep"
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# "gnum4"
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# "gnused"
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# "gzip"
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# "libidn2"
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# "libtool"
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# "libunistring"
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# "libxcrypt"
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# "linux-headers"
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# "meson"
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# "patch"
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# "patchelf"
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# "perl"
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# "pkg-config"
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# "python3-minimal"
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# "stdenv-linux"
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# "texinfo"
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# "which"
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# "xgcc"
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# "xz"
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# "zlib"
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# # "acl"
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# # "attr"
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# # "expat"
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# # "glibc"
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# # "libffi"
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# # "mpdecimal"
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# "unknown"
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# ];
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# doEnableDebug = pname: !(prev.lib.elem pname bootstrapPnames);
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dontDebug = [
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"libgcrypt" #< very picky about its compiler flags (wants -O0, nothing else)
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"python3"
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"systemd" #< fails to compile with -fsanitize=undefined
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"systemd-minimal" "systemd-minimal-libs"
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"valgrind" #< need the perf benefit
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# just to speed things up
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# "appstream"
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"bash" "bash-completion" "bash-interactive"
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# "bluez"
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"brotli"
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"bzip2"
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"cups"
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"e2fsprogs"
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"elfutils"
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"ffmpeg" "openal-soft" "pipewire" #< slow to compile
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"gcc" "gfortran"
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# "flite"
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# "gspell"
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"kexec-tools"
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"kmod"
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"libarchive"
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"libqmi" "modemmanager" "networkmanager" #< libqmi is SLOW to compile
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"libtool"
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"libusb"
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"linux-headers"
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"linux-pam"
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# "pcre2"
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"perl"
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"readline"
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"sharutils"
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"serd"
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"sord"
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"sqlite"
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"tracker"
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"util-linux" "util-linux-minimal"
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"vala"
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"wayland"
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"xapian"
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"xz"
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"zlib"
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"zstd"
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];
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in
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{
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enableDebugging = pkg: pkg.overrideAttrs (args: args // {
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# see also: <https://wiki.nixos.org/wiki/Debug_Symbols>
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dontStrip = true;
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separateDebugInfo = false;
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# -Wno-error: because enabling debug sometimes causes gcc to catch more errors
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env = (args.env or {}) // {
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NIX_CFLAGS_COMPILE = prev.lib.concatStringsSep " " ([
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(toString (args.env.NIX_CFLAGS_COMPILE or ""))
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"-ggdb"
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"-Og"
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"-fno-omit-frame-pointer"
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] ++ prev.lib.optionals (args.pname or args.name or "" != "glibc") [
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"-fstack-protector-strong"
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] ++ [
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# "-fhardened"
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# "-fcf-protection=full" # x86-only
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# "-fsanitize=undefined"
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# "-fsanitize=address" # syntax errors, unable to load `libstdc++.so`
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# "-fsanitize=hwaddress" # undefined reference to __hwasan_init, syntax errors, unable to load `libstdc++.so`
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# "-fsanitize=thread"
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# "-fsanitize-trap=all"
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"-Wno-error"
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]);
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# ASAN_OPTIONS = "detect_leaks=false";
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# MSAN_OPTIONS = "detect_leaks=false";
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# HWASAN_OPTIONS = "detect_leaks=false";
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};
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cargoBuildType = args.cargoBuildType or "debug";
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cmakeBuildType = args.cmakeBuildType or "RelWithDebInfo"; # Debug, or RelWithDebInfo
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mesonBuildType = args.mesonBuildType or "debugoptimized";
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# TODO: ensure `NDEBUG` is removed from any make/cmake/etc flags
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});
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tryEnableDebugging' = enabler: pkg:
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if prev.lib.isAttrs pkg && pkg ? overrideAttrs && !(prev.lib.elem (pkg.pname or "") dontDebug) then
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enabler pkg
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else
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pkg;
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tryEnableDebugging = final.tryEnableDebugging' final.enableDebugging;
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enableDebuggingInclDependencies = pkg: (final.enableDebugging pkg).overrideAttrs (args: args // {
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buildInputs = builtins.map final.tryEnableDebuggingInclDependencies (args.buildInputs or []);
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});
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tryEnableDebuggingInclDependencies = final.tryEnableDebugging' final.enableDebuggingInclDependencies;
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# pkgsDebug = prev.extend (final': prev': {
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# # packages within this set are compiled so as to make debugging in gdb easier.
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# # it's a best-effort way to preserve debug symbols throughout the dependency chain, but DOESN'T ALWAYS KEEP THEM.
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# # TODO: avoid building the compilers/toolchains with debug info -- that's just useless rebuilds
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# stdenv = prev'.stdenv.override (old: {
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# # based on <repo:nixos/nixpkgs:pkgs/stdenv/adapters.nix
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# mkDerivationFromStdenv = stdenv: derivArg: final.enableDebuggingInclDependencies ((old.mkDerivationFromStdenv or (_: prev'.stdenv.mkDerivation)) stdenv derivArg);
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# });
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# });
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pkgsDebug = prev.lib.mapAttrs (_pname: final.tryEnableDebuggingInclDependencies) final;
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})
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