Commit 9818d120 authored by Sergei Trofimovich's avatar Sergei Trofimovich
Browse files

libgcc: remove unused package 

`libgcc` is not usable as is and as a result no packages use it today.
`gcc.cc.libgcc` should provide the same library. But ideally it should
not be used at all as it's an implementation detail of `gcc` support
libraries.
parent 9daee206

pkgs/development/libraries/gcc/libgcc/default.nix

deleted100644 → 0
+0 −156
Original line number Diff line number Diff line 
{ lib, stdenvNoLibs, buildPackages

, gcc, glibc

, libiberty

}:



stdenvNoLibs.mkDerivation rec {

  pname = "libgcc";

  inherit (gcc.cc) src version;



  outputs = [ "out" "dev" ];



  strictDeps = true;

  depsBuildBuild = [ buildPackages.stdenv.cc ];

  nativeBuildInputs = [ libiberty ];



  postUnpack = ''

    mkdir -p ./build

    buildRoot=$(readlink -e "./build")

  '';



  postPatch = ''

    sourceRoot=$(readlink -e "./libgcc")

  '';



  hardeningDisable = [ "pie" ];



  preConfigure = ''

    cd "$buildRoot"

  ''



  # Drop in libiberty, as external builds are not expected

  + ''

    (

      mkdir -p build-${stdenvNoLibs.buildPlatform.config}/libiberty/

      cd build-${stdenvNoLibs.buildPlatform.config}/libiberty/

      ln -s ${buildPackages.libiberty}/lib/libiberty.a ./

    )

  ''

  # A few misc bits of gcc need to be built.

  #

  #  - We "shift" the tools over to fake platforms perspective from the previous

  #    stage.

  #

  #  - We define GENERATOR_FILE so nothing bothers looking for GNU GMP.

  #

  #  - We remove the `libgcc.mvar` deps so that the bootstrap xgcc isn't built.

  + ''

    mkdir -p "$buildRoot/gcc"

    cd "$buildRoot/gcc"

    (

      export AS_FOR_BUILD=${buildPackages.stdenv.cc}/bin/$AS_FOR_BUILD

      export CC_FOR_BUILD=${buildPackages.stdenv.cc}/bin/$CC_FOR_BUILD

      export CPP_FOR_BUILD=${buildPackages.stdenv.cc}/bin/$CPP_FOR_BUILD

      export CXX_FOR_BUILD=${buildPackages.stdenv.cc}/bin/$CXX_FOR_BUILD

      export LD_FOR_BUILD=${buildPackages.stdenv.cc.bintools}/bin/$LD_FOR_BUILD



      export AS=$AS_FOR_BUILD

      export CC=$CC_FOR_BUILD

      export CPP=$CPP_FOR_BUILD

      export CXX=$CXX_FOR_BUILD

      export LD=$LD_FOR_BUILD



      export AS_FOR_TARGET=${stdenvNoLibs.cc}/bin/$AS

      export CC_FOR_TARGET=${stdenvNoLibs.cc}/bin/$CC

      export CPP_FOR_TARGET=${stdenvNoLibs.cc}/bin/$CPP

      export LD_FOR_TARGET=${stdenvNoLibs.cc.bintools}/bin/$LD



      export NIX_CFLAGS_COMPILE_FOR_BUILD+=' -DGENERATOR_FILE=1'



      "$sourceRoot/../gcc/configure" $gccConfigureFlags



      sed -e 's,libgcc.mvars:.*$,libgcc.mvars:,' -i Makefile



      make \

        config.h \

        libgcc.mvars \

        tconfig.h \

        tm.h \

        options.h \

        insn-constants.h \

        insn-modes.h

    )

    mkdir -p "$buildRoot/gcc/include"

  ''

  # Preparing to configure + build libgcc itself

  + ''

    mkdir -p "$buildRoot/gcc/${stdenvNoLibs.hostPlatform.config}/libgcc"

    cd "$buildRoot/gcc/${stdenvNoLibs.hostPlatform.config}/libgcc"

    configureScript=$sourceRoot/configure

    chmod +x "$configureScript"



    export AS_FOR_BUILD=${buildPackages.stdenv.cc}/bin/$AS_FOR_BUILD

    export CC_FOR_BUILD=${buildPackages.stdenv.cc}/bin/$CC_FOR_BUILD

    export CPP_FOR_BUILD=${buildPackages.stdenv.cc}/bin/$CPP_FOR_BUILD

    export CXX_FOR_BUILD=${buildPackages.stdenv.cc}/bin/$CXX_FOR_BUILD

    export LD_FOR_BUILD=${buildPackages.stdenv.cc.bintools}/bin/$LD_FOR_BUILD



    export AS=${stdenvNoLibs.cc}/bin/$AS

    export CC=${stdenvNoLibs.cc}/bin/$CC

    export CPP=${stdenvNoLibs.cc}/bin/$CPP

    export CXX=${stdenvNoLibs.cc}/bin/$CXX

    export LD=${stdenvNoLibs.cc.bintools}/bin/$LD



    export AS_FOR_TARGET=${stdenvNoLibs.cc}/bin/$AS_FOR_TARGET

    export CC_FOR_TARGET=${stdenvNoLibs.cc}/bin/$CC_FOR_TARGET

    export CPP_FOR_TARGET=${stdenvNoLibs.cc}/bin/$CPP_FOR_TARGET

    export LD_FOR_TARGET=${stdenvNoLibs.cc.bintools}/bin/$LD_FOR_TARGET

  '';



  gccConfigureFlags = [

    "--build=${stdenvNoLibs.buildPlatform.config}"

    "--host=${stdenvNoLibs.buildPlatform.config}"

    "--target=${stdenvNoLibs.hostPlatform.config}"



    "--disable-bootstrap"

    "--disable-multilib" "--with-multilib-list="

    "--enable-languages=c"



    "--disable-fixincludes"

    "--disable-intl"

    "--disable-lto"

    "--disable-libatomic"

    "--disable-libbacktrace"

    "--disable-libcpp"

    "--disable-libssp"

    "--disable-libquadmath"

    "--disable-libgomp"

    "--disable-libvtv"

    "--disable-vtable-verify"



    "--with-system-zlib"

  ] ++ lib.optional (stdenvNoLibs.hostPlatform.libc == "glibc")

       "--with-glibc-version=${glibc.version}";



  configurePlatforms = [ "build" "host" ];

  configureFlags = [

    "--disable-dependency-tracking"

    # $CC cannot link binaries, let alone run then

    "cross_compiling=true"

    # Do not have dynamic linker without libc

    "--enable-static"

    "--disable-shared"



    # Avoid dependency on gcc.

    "--disable-gcov"

  ];



  makeFlags = [ "MULTIBUILDTOP:=../" ];



  postInstall = ''

    moveToOutput "lib/gcc/${stdenvNoLibs.hostPlatform.config}/${version}/include" "$dev"

    mkdir -p "$out/lib" "$dev/include"

    ln -s "$out/lib/gcc/${stdenvNoLibs.hostPlatform.config}/${version}"/* "$out/lib"

    ln -s "$dev/lib/gcc/${stdenvNoLibs.hostPlatform.config}/${version}/include"/* "$dev/include/"

  '';

}

pkgs/top-level/aliases.nix

+1 −0
Original line number Diff line number Diff line
@@ -841,6 +841,7 @@ mapAliases ({ 
  liberation_ttf_v1_from_source = throw "'liberation_ttf_v1_from_source' has been renamed to/replaced by 'liberation_ttf_v1'"; # Converted to throw 2022-02-22

  liberation_ttf_v2_from_source = throw "'liberation_ttf_v2_from_source' has been renamed to/replaced by 'liberation_ttf_v2'"; # Converted to throw 2022-02-22

  liberationsansnarrow = throw "'liberationsansnarrow' has been renamed to/replaced by 'liberation-sans-narrow'"; # Converted to throw 2022-02-22

  libgcc = throw "libgcc was removed, use gcc.cc.libgcc if needed"; # added 2023-05-13

  libgksu = throw "libgksu has been removed"; # Added 2022-01-16

  libgme = game-music-emu; # Added 2022-07-20

  libgnome_keyring = throw "'libgnome_keyring' has been renamed to/replaced by 'libgnome-keyring'"; # Converted to throw 2022-02-22

pkgs/top-level/all-packages.nix

+0 −4
Original line number Diff line number Diff line
@@ -18018,10 +18018,6 @@ with pkgs; 














  librarian-puppet-go = callPackage ../development/tools/librarian-puppet-go { };



























  libgcc = callPackage ../development/libraries/gcc/libgcc {













    stdenvNoLibs = gccStdenvNoLibs; # cannot be built with clang it seems













  };



























  # This is for e.g. LLVM libraries on linux.















  gccForLibs =















    if stdenv.targetPlatform == stdenv.hostPlatform && targetPackages.stdenv.cc.isGNU