Merge branch 'nixos-unstable' of https://github.com/NixOS/nixpkgs

Conflicts:
	nixpkgs/pkgs/build-support/go/module.nix
	nixpkgs/pkgs/development/python-modules/django-mailman3/default.nix

1 files changed, 140 insertions, 0 deletions

diff --git a/nixpkgs/pkgs/development/libraries/gcc/libgcc/default.nix b/nixpkgs/pkgs/development/libraries/gcc/libgcc/default.nix
new file mode 100644
index 000000000000..c168113fa3c4
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/gcc/libgcc/default.nix
@@ -0,0 +1,140 @@
+{ lib, stdenvNoLibs, buildPackages
+, gcc, glibc
+, libiberty
+}:
+
+let
+  stdenv = stdenvNoLibs;
+  gccConfigureFlags = gcc.cc.configureFlags ++ [
+    "--disable-fixincludes"
+    "--disable-intl"
+    "--enable-threads=posix"
+    "--with-glibc-version=${glibc.version}"
+
+    # these are required in order to prevent inhibit_libc=true,
+    # which will cripple libgcc's unwinder; see:
+    #  https://github.com/NixOS/nixpkgs/issues/213453#issuecomment-1616346163
+    "--with-headers=${lib.getDev glibc}/include"
+    "--with-native-system-header-dir=${lib.getDev glibc}${glibc.incdir or "/include"}"
+    "--with-build-sysroot=/"
+  ];
+
+in stdenv.mkDerivation (finalAttrs: {
+  pname = "libgcc";
+  inherit (gcc.cc) src version;
+
+  outputs = [ "out" "dev" ];
+
+  strictDeps = true;
+  depsBuildBuild = [ buildPackages.stdenv.cc ];
+  nativeBuildInputs = [ libiberty ];
+  buildInputs = [ glibc ];
+
+  postUnpack = ''
+    mkdir -p ./build
+    buildRoot=$(readlink -e "./build")
+  '';
+
+  postPatch =
+    gcc.cc.passthru.forceLibgccToBuildCrtStuff
+    + ''
+      sourceRoot=$(readlink -e "./libgcc")
+    '';
+
+  hardeningDisable = [ "pie" ];
+
+  preConfigure =
+  ''
+    # Drop in libiberty, as external builds are not expected
+    cd "$buildRoot"
+    (
+      mkdir -p build-${stdenv.buildPlatform.config}/libiberty/
+      cd build-${stdenv.buildPlatform.config}/libiberty/
+      ln -s ${buildPackages.libiberty}/lib/libiberty.a ./
+    )
+    mkdir -p "$buildRoot/gcc"
+    cd "$buildRoot/gcc"
+    (
+      # We "shift" the tools over to fake platforms perspective from the previous stage.
+      export AS_FOR_BUILD=${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=${stdenv.cc}/bin/$AS
+      export CC_FOR_TARGET=${stdenv.cc}/bin/$CC
+      export CPP_FOR_TARGET=${stdenv.cc}/bin/$CPP
+      export LD_FOR_TARGET=${stdenv.cc.bintools}/bin/$LD
+
+      # We define GENERATOR_FILE so nothing bothers looking for GNU GMP.
+      export NIX_CFLAGS_COMPILE_FOR_BUILD+=' -DGENERATOR_FILE=1'
+
+      "$sourceRoot/../gcc/configure" ${lib.concatStringsSep " " gccConfigureFlags}
+
+      # We remove the `libgcc.mvar` deps so that the bootstrap xgcc isn't built.
+      sed -e 's,libgcc.mvars:.*$,libgcc.mvars:,' -i Makefile
+
+      make \
+        config.h \
+        libgcc.mvars \
+        tconfig.h \
+        tm.h \
+        options.h \
+        insn-constants.h \
+  '' + lib.optionalString stdenv.targetPlatform.isM68k ''
+        sysroot-suffix.h \
+  '' + lib.optionalString stdenv.targetPlatform.isAarch32 ''
+        arm-isa.h \
+        arm-cpu.h \
+  '' + ''
+        insn-modes.h
+    )
+    mkdir -p "$buildRoot/gcc/include"
+
+    # Preparing to configure + build libgcc itself
+    mkdir -p "$buildRoot/gcc/${stdenv.hostPlatform.config}/libgcc"
+    cd "$buildRoot/gcc/${stdenv.hostPlatform.config}/libgcc"
+    configureScript=$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/$LD_FOR_BUILD
+
+    export AS=${stdenv.cc}/bin/$AS
+    export CC=${stdenv.cc}/bin/$CC
+    export CPP=${stdenv.cc}/bin/$CPP
+    export CXX=${stdenv.cc}/bin/$CXX
+    export LD=${stdenv.cc.bintools}/bin/$LD
+
+    export AS_FOR_TARGET=${stdenv.cc}/bin/$AS_FOR_TARGET
+    export CC_FOR_TARGET=${stdenv.cc}/bin/$CC_FOR_TARGET
+    export CPP_FOR_TARGET=${stdenv.cc}/bin/$CPP_FOR_TARGET
+    export LD_FOR_TARGET=${stdenv.cc.bintools}/bin/$LD_FOR_TARGET
+  '';
+
+  configurePlatforms = [ "build" "host" ];
+  configureFlags = [
+    "cross_compiling=true"
+    "--disable-gcov"
+    "--with-glibc-version=${glibc.version}"
+  ];
+
+  makeFlags = [ "MULTIBUILDTOP:=../" ];
+
+  postInstall = ''
+    moveToOutput "lib/gcc/${stdenv.hostPlatform.config}/${finalAttrs.version}/include" "$dev"
+    mkdir -p "$out/lib" "$dev/include"
+    ln -s "$out/lib/gcc/${stdenv.hostPlatform.config}/${finalAttrs.version}"/* "$out/lib"
+    ln -s "$dev/lib/gcc/${stdenv.hostPlatform.config}/${finalAttrs.version}/include"/* "$dev/include/"
+  '';
+})