forked from mirrors/nixpkgs
f4e62a996f
Adds new package options: * enableDocs * enableHaddockProgram to control whether to build Sphinx docs, and GHC haddocks and the haddock program. Unfortunately currently the building of the `haddock `program and generating GHC docs are mixed into one option, see: https://gitlab.haskell.org/ghc/ghc/-/issues/20077 Making Sphinx docs disableable, and disabling them by default for Musl and cross builds, makes it much easier to provide these builds without having to support Sphinx's enormous dependency tree for those ways of building.
330 lines
13 KiB
Nix
330 lines
13 KiB
Nix
{ lib, stdenv, pkgsBuildTarget, targetPackages
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# build-tools
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, bootPkgs
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, autoconf, automake, coreutils, fetchurl, perl, python3, m4, sphinx
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, bash
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, libiconv ? null, ncurses
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, # GHC can be built with system libffi or a bundled one.
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libffi ? null
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, useLLVM ? !stdenv.targetPlatform.isx86
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, # LLVM is conceptually a run-time-only depedendency, but for
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# non-x86, we need LLVM to bootstrap later stages, so it becomes a
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# build-time dependency too.
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buildLlvmPackages, llvmPackages
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, # If enabled, GHC will be built with the GPL-free but slower integer-simple
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# library instead of the faster but GPLed integer-gmp library.
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enableIntegerSimple ? !(lib.meta.availableOn stdenv.hostPlatform gmp), gmp
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, # If enabled, use -fPIC when compiling static libs.
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enableRelocatedStaticLibs ? stdenv.targetPlatform != stdenv.hostPlatform
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# aarch64 outputs otherwise exceed 2GB limit
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, enableProfiledLibs ? !stdenv.targetPlatform.isAarch64
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, # Whether to build dynamic libs for the standard library (on the target
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# platform). Static libs are always built.
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enableShared ? !stdenv.targetPlatform.isWindows && !stdenv.targetPlatform.useiOSPrebuilt
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, # Whether to build terminfo.
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enableTerminfo ? !stdenv.targetPlatform.isWindows
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, # What flavour to build. An empty string indicates no
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# specific flavour and falls back to ghc default values.
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ghcFlavour ? lib.optionalString (stdenv.targetPlatform != stdenv.hostPlatform)
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(if useLLVM then "perf-cross" else "perf-cross-ncg")
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, # Whether to build sphinx documentation.
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enableDocs ? (
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# Docs disabled for musl and cross because it's a large task to keep
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# all `sphinx` dependencies building in those environments.
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# `sphinx` pullls in among others:
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# Ruby, Python, Perl, Rust, OpenGL, Xorg, gtk, LLVM.
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(stdenv.targetPlatform == stdenv.hostPlatform)
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&& !stdenv.hostPlatform.isMusl
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)
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, enableHaddockProgram ?
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# Disabled for cross; see note [HADDOCK_DOCS].
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(stdenv.targetPlatform == stdenv.hostPlatform)
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, # Whether to disable the large address space allocator
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# necessary fix for iOS: https://www.reddit.com/r/haskell/comments/4ttdz1/building_an_osxi386_to_iosarm64_cross_compiler/d5qvd67/
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disableLargeAddressSpace ? stdenv.targetPlatform.isDarwin && stdenv.targetPlatform.isAarch64
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}:
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assert !enableIntegerSimple -> gmp != null;
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# Cross cannot currently build the `haddock` program for silly reasons,
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# see note [HADDOCK_DOCS].
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assert (stdenv.targetPlatform != stdenv.hostPlatform) -> !enableHaddockProgram;
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let
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inherit (stdenv) buildPlatform hostPlatform targetPlatform;
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inherit (bootPkgs) ghc;
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# TODO(@Ericson2314) Make unconditional
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targetPrefix = lib.optionalString
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(targetPlatform != hostPlatform)
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"${targetPlatform.config}-";
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buildMK = dontStrip: ''
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BuildFlavour = ${ghcFlavour}
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ifneq \"\$(BuildFlavour)\" \"\"
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include mk/flavours/\$(BuildFlavour).mk
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endif
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BUILD_SPHINX_HTML = ${if enableDocs then "YES" else "NO"}
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BUILD_SPHINX_PDF = NO
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'' +
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# Note [HADDOCK_DOCS]:
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# Unfortunately currently `HADDOCK_DOCS` controls both whether the `haddock`
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# program is built (which we generally always want to have a complete GHC install)
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# and whether it is run on the GHC sources to generate hyperlinked source code
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# (which is impossible for cross-compilation); see:
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# https://gitlab.haskell.org/ghc/ghc/-/issues/20077
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# This implies that currently a cross-compiled GHC will never have a `haddock`
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# program, so it can never generate haddocks for any packages.
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# If this is solved in the future, we'd like to unconditionally
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# build the haddock program (removing the `enableHaddockProgram` option).
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''
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HADDOCK_DOCS = ${if enableHaddockProgram then "YES" else "NO"}
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DYNAMIC_GHC_PROGRAMS = ${if enableShared then "YES" else "NO"}
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INTEGER_LIBRARY = ${if enableIntegerSimple then "integer-simple" else "integer-gmp"}
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''
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# We only need to build stage1 on most cross-compilation because
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# we will be running the compiler on the native system. In some
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# situations, like native Musl compilation, we need the compiler
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# to actually link to our new Libc. The iOS simulator is a special
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# exception because we can’t actually run simulators binaries
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# ourselves.
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+ lib.optionalString (targetPlatform != hostPlatform) ''
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Stage1Only = ${if (targetPlatform.system == hostPlatform.system && !targetPlatform.isiOS) then "NO" else "YES"}
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CrossCompilePrefix = ${targetPrefix}
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'' + lib.optionalString dontStrip ''
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STRIP_CMD = :
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'' + lib.optionalString (!enableProfiledLibs) ''
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GhcLibWays = "v dyn"
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'' + lib.optionalString enableRelocatedStaticLibs ''
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GhcLibHcOpts += -fPIC
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GhcRtsHcOpts += -fPIC
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'' + lib.optionalString targetPlatform.useAndroidPrebuilt ''
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EXTRA_CC_OPTS += -std=gnu99
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'';
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# Splicer will pull out correct variations
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libDeps = platform: lib.optional enableTerminfo ncurses
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++ [libffi]
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++ lib.optional (!enableIntegerSimple) gmp
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++ lib.optional (platform.libc != "glibc" && !targetPlatform.isWindows) libiconv;
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toolsForTarget = [
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pkgsBuildTarget.targetPackages.stdenv.cc
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] ++ lib.optional useLLVM buildLlvmPackages.llvm;
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targetCC = builtins.head toolsForTarget;
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# Use gold either following the default, or to avoid the BFD linker due to some bugs / perf issues.
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# But we cannot avoid BFD when using musl libc due to https://sourceware.org/bugzilla/show_bug.cgi?id=23856
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# see #84670 and #49071 for more background.
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useLdGold = targetPlatform.linker == "gold" || (targetPlatform.linker == "bfd" && !targetPlatform.isMusl);
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runtimeDeps = [
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targetPackages.stdenv.cc.bintools
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coreutils
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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 = "8.8.4";
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name = "${targetPrefix}ghc-${version}";
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src = fetchurl {
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url = "https://downloads.haskell.org/ghc/${version}/ghc-${version}-src.tar.xz";
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sha256 = "0bgwbxxvdn56l91bp9p5d083gzcfdi6z8l8b17qzjpr3n8w5wl7h";
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};
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enableParallelBuilding = true;
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outputs = [ "out" "doc" ];
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patches = [
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# See upstream patch at
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# https://gitlab.haskell.org/ghc/ghc/-/merge_requests/4885. Since we build
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# from source distributions, the auto-generated configure script needs to be
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# patched as well, therefore we use an in-tree patch instead of pulling the
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# upstream patch. Don't forget to check backport status of the upstream patch
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# when adding new GHC releases in nixpkgs.
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./respect-ar-path.patch
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# Fix documentation configuration which causes a syntax error with sphinx 4.*
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# See also https://gitlab.haskell.org/ghc/ghc/-/issues/19962
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./sphinx-4-configuration.patch
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];
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postPatch = "patchShebangs .";
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# GHC is a bit confused on its cross terminology.
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preConfigure =
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# Aarch64 allow backward bootstrapping since earlier versions are unstable.
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# Same for musl, as earlier versions do not provide a musl bindist for bootstrapping.
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lib.optionalString (stdenv.isAarch64 || stdenv.hostPlatform.isMusl) ''
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find . -name \*\.cabal\* -exec sed -i -e 's/\(base.*\)4.14/\14.16/' {} \; \
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-exec sed -i -e 's/\(prim.*\)0.6/\10.8/' {} \;
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''
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+ ''
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for env in $(env | grep '^TARGET_' | sed -E 's|\+?=.*||'); do
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export "''${env#TARGET_}=''${!env}"
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done
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# GHC is a bit confused on its cross terminology, as these would normally be
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# the *host* tools.
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export CC="${targetCC}/bin/${targetCC.targetPrefix}cc"
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export CXX="${targetCC}/bin/${targetCC.targetPrefix}cxx"
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# Use gold to work around https://sourceware.org/bugzilla/show_bug.cgi?id=16177
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export LD="${targetCC.bintools}/bin/${targetCC.bintools.targetPrefix}ld${lib.optionalString useLdGold ".gold"}"
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export AS="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}as"
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export AR="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}ar"
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export NM="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}nm"
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export RANLIB="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}ranlib"
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export READELF="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}readelf"
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export STRIP="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}strip"
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echo -n "${buildMK dontStrip}" > mk/build.mk
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sed -i -e 's|-isysroot /Developer/SDKs/MacOSX10.5.sdk||' configure
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'' + lib.optionalString (!stdenv.isDarwin) ''
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export NIX_LDFLAGS+=" -rpath $out/lib/ghc-${version}"
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'' + lib.optionalString stdenv.isDarwin ''
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export NIX_LDFLAGS+=" -no_dtrace_dof"
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'' + lib.optionalString targetPlatform.useAndroidPrebuilt ''
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sed -i -e '5i ,("armv7a-unknown-linux-androideabi", ("e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64", "cortex-a8", ""))' llvm-targets
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'' + lib.optionalString targetPlatform.isMusl ''
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echo "patching llvm-targets for musl targets..."
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echo "Cloning these existing '*-linux-gnu*' targets:"
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grep linux-gnu llvm-targets | sed 's/^/ /'
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echo "(go go gadget sed)"
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sed -i 's,\(^.*linux-\)gnu\(.*\)$,\0\n\1musl\2,' llvm-targets
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echo "llvm-targets now contains these '*-linux-musl*' targets:"
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grep linux-musl llvm-targets | sed 's/^/ /'
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echo "And now patching to preserve '-musleabi' as done with '-gnueabi'"
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# (aclocal.m4 is actual source, but patch configure as well since we don't re-gen)
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for x in configure aclocal.m4; do
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substituteInPlace $x \
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--replace '*-android*|*-gnueabi*)' \
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'*-android*|*-gnueabi*|*-musleabi*)'
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done
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'';
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# TODO(@Ericson2314): Always pass "--target" and always prefix.
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configurePlatforms = [ "build" "host" ]
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++ lib.optional (targetPlatform != hostPlatform) "target";
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# `--with` flags for libraries needed for RTS linker
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configureFlags = [
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"--datadir=$doc/share/doc/ghc"
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"--with-curses-includes=${ncurses.dev}/include" "--with-curses-libraries=${ncurses.out}/lib"
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] ++ lib.optionals (libffi != null) [
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"--with-system-libffi"
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"--with-ffi-includes=${targetPackages.libffi.dev}/include"
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"--with-ffi-libraries=${targetPackages.libffi.out}/lib"
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] ++ lib.optionals (targetPlatform == hostPlatform && !enableIntegerSimple) [
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"--with-gmp-includes=${targetPackages.gmp.dev}/include"
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"--with-gmp-libraries=${targetPackages.gmp.out}/lib"
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] ++ lib.optionals (targetPlatform == hostPlatform && hostPlatform.libc != "glibc" && !targetPlatform.isWindows) [
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"--with-iconv-includes=${libiconv}/include"
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"--with-iconv-libraries=${libiconv}/lib"
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] ++ lib.optionals (targetPlatform != hostPlatform) [
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"--enable-bootstrap-with-devel-snapshot"
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] ++ lib.optionals useLdGold [
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"CFLAGS=-fuse-ld=gold"
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"CONF_GCC_LINKER_OPTS_STAGE1=-fuse-ld=gold"
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"CONF_GCC_LINKER_OPTS_STAGE2=-fuse-ld=gold"
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] ++ lib.optionals (disableLargeAddressSpace) [
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"--disable-large-address-space"
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];
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# Make sure we never relax`$PATH` and hooks support for compatibility.
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strictDeps = true;
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# Don’t add -liconv to LDFLAGS automatically so that GHC will add it itself.
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dontAddExtraLibs = true;
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nativeBuildInputs = [
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perl autoconf automake m4 python3
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ghc bootPkgs.alex bootPkgs.happy bootPkgs.hscolour
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] ++ lib.optionals enableDocs [
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sphinx
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];
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# For building runtime libs
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depsBuildTarget = toolsForTarget;
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buildInputs = [ perl bash ] ++ (libDeps hostPlatform);
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propagatedBuildInputs = [ targetPackages.stdenv.cc ]
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++ lib.optional useLLVM llvmPackages.llvm;
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depsTargetTarget = map lib.getDev (libDeps targetPlatform);
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depsTargetTargetPropagated = map (lib.getOutput "out") (libDeps targetPlatform);
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# required, because otherwise all symbols from HSffi.o are stripped, and
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# that in turn causes GHCi to abort
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stripDebugFlags = [ "-S" ] ++ lib.optional (!targetPlatform.isDarwin) "--keep-file-symbols";
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checkTarget = "test";
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hardeningDisable =
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[ "format" ]
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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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++ lib.optional stdenv.targetPlatform.isMusl "pie";
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postInstall = ''
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# Install the bash completion file.
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install -D -m 444 utils/completion/ghc.bash $out/share/bash-completion/completions/${targetPrefix}ghc
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# Patch scripts to include "readelf" and "cat" in $PATH.
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for i in "$out/bin/"*; do
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test ! -h $i || continue
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egrep --quiet '^#!' <(head -n 1 $i) || continue
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sed -i -e '2i export PATH="$PATH:${lib.makeBinPath runtimeDeps}"' $i
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done
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'';
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passthru = {
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inherit bootPkgs targetPrefix;
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inherit llvmPackages;
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inherit enableShared;
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# Our Cabal compiler name
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haskellCompilerName = "ghc-${version}";
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};
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meta = {
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homepage = "http://haskell.org/ghc";
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description = "The Glasgow Haskell Compiler";
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maintainers = with lib.maintainers; [ marcweber andres peti ];
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timeout = 24 * 3600;
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inherit (ghc.meta) license platforms;
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};
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dontStrip = (targetPlatform.useAndroidPrebuilt || targetPlatform.isWasm);
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} // lib.optionalAttrs targetPlatform.useAndroidPrebuilt{
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dontPatchELF = true;
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noAuditTmpdir = true;
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})
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