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https://github.com/NixOS/nixpkgs.git
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5384a35a0c
This brings the binary GHCs on parity with the source built ones in terms of the wrapper. The upshot of this is that compiling something using the binary GHCs no longer depends on PATH being populated with the tools included in stdenv at all. We can even test this by running the installCheck with an empty environment (via `env -i`).
222 lines
8.1 KiB
Nix
222 lines
8.1 KiB
Nix
{ lib, stdenv
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, fetchurl, perl, gcc
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, ncurses5, ncurses6, gmp, glibc, libiconv
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, llvmPackages
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, coreutils
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, targetPackages
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}:
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# Prebuilt only does native
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assert stdenv.targetPlatform == stdenv.hostPlatform;
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let
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useLLVM = !stdenv.targetPlatform.isx86;
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useNcurses6 = stdenv.hostPlatform.system == "x86_64-linux";
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ourNcurses = if useNcurses6 then ncurses6 else ncurses5;
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libPath = lib.makeLibraryPath ([
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ourNcurses gmp
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] ++ lib.optional (stdenv.hostPlatform.isDarwin) libiconv);
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libEnvVar = lib.optionalString stdenv.hostPlatform.isDarwin "DY"
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+ "LD_LIBRARY_PATH";
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glibcDynLinker = assert stdenv.isLinux;
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if stdenv.hostPlatform.libc == "glibc" then
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# Could be stdenv.cc.bintools.dynamicLinker, keeping as-is to avoid rebuild.
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''"$(cat $NIX_CC/nix-support/dynamic-linker)"''
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else
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"${lib.getLib glibc}/lib/ld-linux*";
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downloadsUrl = "https://downloads.haskell.org/ghc";
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runtimeDeps = [
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targetPackages.stdenv.cc
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targetPackages.stdenv.cc.bintools
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coreutils # for cat
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]
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++ lib.optionals useLLVM [
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(lib.getBin llvmPackages.llvm)
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]
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# On darwin, we need unwrapped bintools as well (for otool)
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++ lib.optionals (stdenv.targetPlatform.linker == "cctools") [
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targetPackages.stdenv.cc.bintools.bintools
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];
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in
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stdenv.mkDerivation rec {
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version = "8.6.5";
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pname = "ghc-binary";
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# https://downloads.haskell.org/~ghc/8.6.5/
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src = fetchurl ({
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i686-linux = {
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# Don't use the Fedora27 build (as below) because there isn't one!
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url = "${downloadsUrl}/${version}/ghc-${version}-i386-deb9-linux.tar.xz";
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sha256 = "1p2h29qghql19ajk755xa0yxkn85slbds8m9n5196ris743vkp8w";
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};
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x86_64-linux = {
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# This is the Fedora build because it links against ncurses6 where the
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# deb9 one links against ncurses5, see here
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# https://github.com/NixOS/nixpkgs/issues/85924 for a discussion
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url = "${downloadsUrl}/${version}/ghc-${version}-x86_64-fedora27-linux.tar.xz";
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sha256 = "18dlqm5d028fqh6ghzn7pgjspr5smw030jjzl3kq6q1kmwzbay6g";
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};
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aarch64-linux = {
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url = "${downloadsUrl}/${version}/ghc-${version}-aarch64-ubuntu18.04-linux.tar.xz";
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sha256 = "11n7l2a36i5vxzzp85la2555q4m34l747g0pnmd81cp46y85hlhq";
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};
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x86_64-darwin = {
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url = "${downloadsUrl}/${version}/ghc-${version}-x86_64-apple-darwin.tar.xz";
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sha256 = "0s9188vhhgf23q3rjarwhbr524z6h2qga5xaaa2pma03sfqvvhfz";
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};
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}.${stdenv.hostPlatform.system}
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or (throw "cannot bootstrap GHC on this platform"));
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nativeBuildInputs = [ perl ];
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# Cannot patchelf beforehand due to relative RPATHs that anticipate
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# the final install location/
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${libEnvVar} = libPath;
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postUnpack =
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# GHC has dtrace probes, which causes ld to try to open /usr/lib/libdtrace.dylib
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# during linking
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lib.optionalString stdenv.isDarwin ''
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export NIX_LDFLAGS+=" -no_dtrace_dof"
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# not enough room in the object files for the full path to libiconv :(
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for exe in $(find . -type f -executable); do
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isScript $exe && continue
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ln -fs ${libiconv}/lib/libiconv.dylib $(dirname $exe)/libiconv.dylib
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install_name_tool -change /usr/lib/libiconv.2.dylib @executable_path/libiconv.dylib -change /usr/local/lib/gcc/6/libgcc_s.1.dylib ${gcc.cc.lib}/lib/libgcc_s.1.dylib $exe
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done
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'' +
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# Some scripts used during the build need to have their shebangs patched
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''
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patchShebangs ghc-${version}/utils/
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patchShebangs ghc-${version}/configure
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'' +
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# We have to patch the GMP paths for the integer-gmp package.
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''
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find . -name integer-gmp.buildinfo \
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-exec sed -i "s@extra-lib-dirs: @extra-lib-dirs: ${gmp.out}/lib@" {} \;
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'' + lib.optionalString stdenv.isDarwin ''
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find . -name base.buildinfo \
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-exec sed -i "s@extra-lib-dirs: @extra-lib-dirs: ${libiconv}/lib@" {} \;
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'' +
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# Rename needed libraries and binaries, fix interpreter
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lib.optionalString stdenv.isLinux ''
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find . -type f -perm -0100 \
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-exec patchelf \
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--replace-needed libncurses${lib.optionalString stdenv.is64bit "w"}.so.5 libncurses.so \
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${ # This isn't required for x86_64-linux where we use ncurses6
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lib.optionalString (!useNcurses6) "--replace-needed libtinfo.so libtinfo.so.5"
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} \
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--interpreter ${glibcDynLinker} {} \;
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sed -i "s|/usr/bin/perl|perl\x00 |" ghc-${version}/ghc/stage2/build/tmp/ghc-stage2
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sed -i "s|/usr/bin/gcc|gcc\x00 |" ghc-${version}/ghc/stage2/build/tmp/ghc-stage2
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'' +
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# We're kludging a glibc bindist into working with non-glibc...
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# Here we patch up the use of `__strdup` (part of glibc binary ABI)
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# to instead use `strdup` since musl doesn't provide __strdup
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# (`__strdup` is defined to be an alias of `strdup` anyway[1]).
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# [1] http://refspecs.linuxbase.org/LSB_4.0.0/LSB-Core-generic/LSB-Core-generic/baselib---strdup-1.html
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# Use objcopy magic to make the change:
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lib.optionalString stdenv.hostPlatform.isMusl ''
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find ./ghc-${version}/rts -name "libHSrts*.a" -exec ''${OBJCOPY:-objcopy} --redefine-sym __strdup=strdup {} \;
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'';
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configurePlatforms = [ ];
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configureFlags = [
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"--with-gmp-includes=${lib.getDev gmp}/include"
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# Note `--with-gmp-libraries` does nothing for GHC bindists:
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# https://gitlab.haskell.org/ghc/ghc/-/merge_requests/6124
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] ++ lib.optional stdenv.isDarwin "--with-gcc=${./gcc-clang-wrapper.sh}"
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++ lib.optional stdenv.hostPlatform.isMusl "--disable-ld-override";
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# No building is necessary, but calling make without flags ironically
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# calls install-strip ...
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dontBuild = true;
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# Patch scripts to include runtime dependencies in $PATH.
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postInstall = ''
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for i in "$out/bin/"*; do
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test ! -h "$i" || continue
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isScript "$i" || continue
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sed -i -e '2i export PATH="${lib.makeBinPath runtimeDeps}:$PATH"' "$i"
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done
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'';
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# On Linux, use patchelf to modify the executables so that they can
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# find editline/gmp.
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postFixup = lib.optionalString stdenv.isLinux ''
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for p in $(find "$out" -type f -executable); do
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if isELF "$p"; then
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echo "Patchelfing $p"
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patchelf --set-rpath "${libPath}:$(patchelf --print-rpath $p)" $p
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fi
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done
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'' + lib.optionalString stdenv.isDarwin ''
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# not enough room in the object files for the full path to libiconv :(
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for exe in $(find "$out" -type f -executable); do
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isScript $exe && continue
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ln -fs ${libiconv}/lib/libiconv.dylib $(dirname $exe)/libiconv.dylib
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install_name_tool -change /usr/lib/libiconv.2.dylib @executable_path/libiconv.dylib -change /usr/local/lib/gcc/6/libgcc_s.1.dylib ${gcc.cc.lib}/lib/libgcc_s.1.dylib $exe
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done
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for file in $(find "$out" -name setup-config); do
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substituteInPlace $file --replace /usr/bin/ranlib "$(type -P ranlib)"
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done
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'';
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# In nixpkgs, musl based builds currently enable `pie` hardening by default
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# (see `defaultHardeningFlags` in `make-derivation.nix`).
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# But GHC cannot currently produce outputs that are ready for `-pie` linking.
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# Thus, disable `pie` hardening, otherwise `recompile with -fPIE` errors appear.
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# See:
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# * https://github.com/NixOS/nixpkgs/issues/129247
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# * https://gitlab.haskell.org/ghc/ghc/-/issues/19580
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hardeningDisable = lib.optional stdenv.targetPlatform.isMusl "pie";
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doInstallCheck = true;
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installCheckPhase = ''
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# Sanity check, can ghc create executables?
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cd $TMP
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mkdir test-ghc; cd test-ghc
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cat > main.hs << EOF
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{-# LANGUAGE TemplateHaskell #-}
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module Main where
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main = putStrLn \$([|"yes"|])
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EOF
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env -i $out/bin/ghc --make main.hs || exit 1
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echo compilation ok
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[ $(./main) == "yes" ]
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'';
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passthru = {
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targetPrefix = "";
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enableShared = true;
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inherit llvmPackages;
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# Our Cabal compiler name
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haskellCompilerName = "ghc-${version}";
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};
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meta = rec {
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license = lib.licenses.bsd3;
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platforms = ["x86_64-linux" "i686-linux" "x86_64-darwin"];
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# build segfaults, use ghc8102Binary which has proper musl support instead
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broken = stdenv.hostPlatform.isMusl;
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maintainers = with lib.maintainers; [
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guibou
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] ++ lib.teams.haskell.members;
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};
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}
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