nixpkgs/pkgs/development/compilers/ghc/common-hadrian.nix
Randy Eckenrode 6454fb1bc0
haskell.compiler.ghc962: fix build on Darwin after stdenv rework merge
The switch to cctools-llvm made several LLVM tools the default on
Darwin, which includes llvm-ar. GHC will try to use `-L` with `ar` when
it is `llvm-ar`, but that doesn’t work currently on Darwin.

See https://gitlab.haskell.org/ghc/ghc/-/issues/23188.
2023-07-14 10:51:29 -06:00

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{ version
, rev ? null
, sha256
, url ?
if rev != null
then "https://gitlab.haskell.org/ghc/ghc.git"
else "https://downloads.haskell.org/ghc/${version}/ghc-${version}-src.tar.xz"
}:
{ lib
, stdenv
, pkgsBuildTarget
, pkgsHostTarget
, targetPackages
# build-tools
, bootPkgs
, autoconf
, automake
, coreutils
, fetchpatch
, fetchurl
, fetchgit
, perl
, python3
, m4
, sphinx
, xattr
, autoSignDarwinBinariesHook
, bash
, libiconv ? null, ncurses
, glibcLocales ? null
, # GHC can be built with system libffi or a bundled one.
libffi ? null
, useLLVM ? !(stdenv.targetPlatform.isx86
|| stdenv.targetPlatform.isPower
|| stdenv.targetPlatform.isSparc
|| (stdenv.targetPlatform.isAarch64 && stdenv.targetPlatform.isDarwin)
|| stdenv.targetPlatform.isGhcjs)
, # LLVM is conceptually a run-time-only dependency, but for
# non-x86, we need LLVM to bootstrap later stages, so it becomes a
# build-time dependency too.
buildTargetLlvmPackages
, llvmPackages
, # If enabled, GHC will be built with the GPL-free but slightly slower native
# bignum backend instead of the faster but GPLed gmp backend.
enableNativeBignum ? !(lib.meta.availableOn stdenv.hostPlatform gmp
&& lib.meta.availableOn stdenv.targetPlatform gmp)
|| stdenv.targetPlatform.isGhcjs
, gmp
, # If enabled, use -fPIC when compiling static libs.
enableRelocatedStaticLibs ? stdenv.targetPlatform != stdenv.hostPlatform
# aarch64 outputs otherwise exceed 2GB limit
, enableProfiledLibs ? !stdenv.targetPlatform.isAarch64
, # Whether to build dynamic libs for the standard library (on the target
# platform). Static libs are always built.
enableShared ? with stdenv.targetPlatform; !isWindows && !useiOSPrebuilt && !isStatic && !isGhcjs
, # Whether to build terminfo.
enableTerminfo ? !(stdenv.targetPlatform.isWindows
|| stdenv.targetPlatform.isGhcjs)
, # Libdw.c only supports x86_64, i686 and s390x as of 2022-08-04
enableDwarf ? (stdenv.targetPlatform.isx86 ||
(stdenv.targetPlatform.isS390 && stdenv.targetPlatform.is64bit)) &&
lib.meta.availableOn stdenv.hostPlatform elfutils &&
lib.meta.availableOn stdenv.targetPlatform elfutils &&
# HACK: elfutils is marked as broken on static platforms
# which availableOn can't tell.
!stdenv.targetPlatform.isStatic &&
!stdenv.hostPlatform.isStatic
, elfutils
, # What flavour to build. Flavour string may contain a flavour and flavour
# transformers as accepted by hadrian.
ghcFlavour ?
let
# TODO(@sternenseemann): does using the static flavour make sense?
baseFlavour = "release";
# Note: in case hadrian's flavour transformers cease being expressive
# enough for us, we'll need to resort to defining a "nixpkgs" flavour
# in hadrianUserSettings and using that instead.
transformers =
lib.optionals useLLVM [ "llvm" ]
++ lib.optionals (!enableShared) [
"no_dynamic_libs"
"no_dynamic_ghc"
]
++ lib.optionals (!enableProfiledLibs) [ "no_profiled_libs" ]
# While split sections are now enabled by default in ghc 8.8 for windows,
# they seem to lead to `too many sections` errors when building base for
# profiling.
++ lib.optionals (!stdenv.targetPlatform.isWindows) [ "split_sections" ]
;
in
baseFlavour + lib.concatMapStrings (t: "+${t}") transformers
, # Contents of the UserSettings.hs file to use when compiling hadrian.
hadrianUserSettings ? ''
module UserSettings (
userFlavours, userPackages, userDefaultFlavour,
verboseCommand, buildProgressColour, successColour, finalStage
) where
import Flavour.Type
import Expression
import {-# SOURCE #-} Settings.Default
-- no way to set this via the command line
finalStage :: Stage
finalStage = ${
if stdenv.hostPlatform == stdenv.targetPlatform
then "Stage2" # native compiler
else "Stage1" # cross compiler
}
userDefaultFlavour :: String
userDefaultFlavour = "release"
userFlavours :: [Flavour]
userFlavours = []
-- Disable Colours
buildProgressColour :: BuildProgressColour
buildProgressColour = mkBuildProgressColour (Dull Reset)
successColour :: SuccessColour
successColour = mkSuccessColour (Dull Reset)
-- taken from src/UserSettings.hs unchanged, need to be there
userPackages :: [Package]
userPackages = []
verboseCommand :: Predicate
verboseCommand = do
verbosity <- expr getVerbosity
return $ verbosity >= Verbose
''
, ghcSrc ? (if rev != null then fetchgit else fetchurl) ({
inherit url sha256;
} // lib.optionalAttrs (rev != null) {
inherit rev;
})
# GHC's build system hadrian built from the GHC-to-build's source tree
# using our bootstrap GHC.
, hadrian ? bootPkgs.callPackage ../../tools/haskell/hadrian {
ghcSrc = ghcSrc;
ghcVersion = version;
userSettings = hadrianUserSettings;
}
, # Whether to build sphinx documentation.
enableDocs ? (
# Docs disabled for musl and cross because it's a large task to keep
# all `sphinx` dependencies building in those environments.
# `sphinx` pulls in among others:
# Ruby, Python, Perl, Rust, OpenGL, Xorg, gtk, LLVM.
(stdenv.targetPlatform == stdenv.hostPlatform)
&& !stdenv.hostPlatform.isMusl
)
, # Whether to disable the large address space allocator
# necessary fix for iOS: https://www.reddit.com/r/haskell/comments/4ttdz1/building_an_osxi386_to_iosarm64_cross_compiler/d5qvd67/
disableLargeAddressSpace ? stdenv.targetPlatform.isiOS
}:
assert !enableNativeBignum -> gmp != null;
let
inherit (stdenv) buildPlatform hostPlatform targetPlatform;
inherit (bootPkgs) ghc;
# TODO(@Ericson2314) Make unconditional
targetPrefix = lib.optionalString
(targetPlatform != hostPlatform)
"${targetPlatform.config}-";
hadrianSettings =
# -fexternal-dynamic-refs apparently (because it's not clear from the
# documentation) makes the GHC RTS able to load static libraries, which may
# be needed for TemplateHaskell. This solution was described in
# https://www.tweag.io/blog/2020-09-30-bazel-static-haskell
lib.optionals enableRelocatedStaticLibs [
"*.*.ghc.*.opts += -fPIC -fexternal-dynamic-refs"
]
++ lib.optionals targetPlatform.useAndroidPrebuilt [
"*.*.ghc.c.opts += -optc-std=gnu99"
];
# Splicer will pull out correct variations
libDeps = platform: lib.optional enableTerminfo ncurses
++ lib.optionals (!targetPlatform.isGhcjs) [libffi]
# Bindist configure script fails w/o elfutils in linker search path
# https://gitlab.haskell.org/ghc/ghc/-/issues/22081
++ lib.optional enableDwarf elfutils
++ lib.optional (!enableNativeBignum) gmp
++ lib.optional (platform.libc != "glibc" && !targetPlatform.isWindows && !targetPlatform.isGhcjs) libiconv;
# TODO(@sternenseemann): is buildTarget LLVM unnecessary?
# GHC doesn't seem to have {LLC,OPT}_HOST
toolsForTarget = [
(if targetPlatform.isGhcjs
then pkgsBuildTarget.emscripten
else pkgsBuildTarget.targetPackages.stdenv.cc)
] ++ lib.optional useLLVM buildTargetLlvmPackages.llvm;
targetCC = builtins.head toolsForTarget;
# Sometimes we have to dispatch between the bintools wrapper and the unwrapped
# derivation for certain tools depending on the platform.
bintoolsFor = {
# GHC needs install_name_tool on all darwin platforms. On aarch64-darwin it is
# part of the bintools wrapper (due to codesigning requirements), but not on
# x86_64-darwin.
install_name_tool =
if stdenv.targetPlatform.isAarch64
then targetCC.bintools
else targetCC.bintools.bintools;
# Same goes for strip.
strip =
# TODO(@sternenseemann): also use wrapper if linker == "bfd" or "gold"
if stdenv.targetPlatform.isAarch64 && stdenv.targetPlatform.isDarwin
then targetCC.bintools
else targetCC.bintools.bintools;
};
# Use gold either following the default, or to avoid the BFD linker due to some bugs / perf issues.
# But we cannot avoid BFD when using musl libc due to https://sourceware.org/bugzilla/show_bug.cgi?id=23856
# see #84670 and #49071 for more background.
useLdGold = targetPlatform.linker == "gold" ||
(targetPlatform.linker == "bfd" && (targetCC.bintools.bintools.hasGold or false) && !targetPlatform.isMusl);
# Makes debugging easier to see which variant is at play in `nix-store -q --tree`.
variantSuffix = lib.concatStrings [
(lib.optionalString stdenv.hostPlatform.isMusl "-musl")
(lib.optionalString enableNativeBignum "-native-bignum")
];
in
# C compiler, bintools and LLVM are used at build time, but will also leak into
# the resulting GHC's settings file and used at runtime. This means that we are
# currently only able to build GHC if hostPlatform == buildPlatform.
assert !targetPlatform.isGhcjs -> targetCC == pkgsHostTarget.targetPackages.stdenv.cc;
assert buildTargetLlvmPackages.llvm == llvmPackages.llvm;
assert stdenv.targetPlatform.isDarwin -> buildTargetLlvmPackages.clang == llvmPackages.clang;
stdenv.mkDerivation ({
pname = "${targetPrefix}ghc${variantSuffix}";
inherit version;
src = ghcSrc;
enableParallelBuilding = true;
postPatch = ''
patchShebangs --build .
'';
# GHC needs the locale configured during the Haddock phase.
LANG = "en_US.UTF-8";
# GHC is a bit confused on its cross terminology.
# TODO(@sternenseemann): investigate coreutils dependencies and pass absolute paths
preConfigure = ''
for env in $(env | grep '^TARGET_' | sed -E 's|\+?=.*||'); do
export "''${env#TARGET_}=''${!env}"
done
# GHC is a bit confused on its cross terminology, as these would normally be
# the *host* tools.
export CC="${targetCC}/bin/${targetCC.targetPrefix}cc"
export CXX="${targetCC}/bin/${targetCC.targetPrefix}c++"
# Use gold to work around https://sourceware.org/bugzilla/show_bug.cgi?id=16177
export LD="${targetCC.bintools}/bin/${targetCC.bintools.targetPrefix}ld${lib.optionalString useLdGold ".gold"}"
export AS="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}as"
export AR="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}ar"
export NM="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}nm"
export RANLIB="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}ranlib"
export READELF="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}readelf"
export STRIP="${bintoolsFor.strip}/bin/${bintoolsFor.strip.targetPrefix}strip"
'' + lib.optionalString (stdenv.targetPlatform.linker == "cctools") ''
export OTOOL="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}otool"
export INSTALL_NAME_TOOL="${bintoolsFor.install_name_tool}/bin/${bintoolsFor.install_name_tool.targetPrefix}install_name_tool"
'' + lib.optionalString useLLVM ''
export LLC="${lib.getBin buildTargetLlvmPackages.llvm}/bin/llc"
export OPT="${lib.getBin buildTargetLlvmPackages.llvm}/bin/opt"
'' + lib.optionalString (useLLVM && stdenv.targetPlatform.isDarwin) ''
# LLVM backend on Darwin needs clang: https://downloads.haskell.org/~ghc/latest/docs/html/users_guide/codegens.html#llvm-code-generator-fllvm
export CLANG="${buildTargetLlvmPackages.clang}/bin/${buildTargetLlvmPackages.clang.targetPrefix}clang"
'' +
lib.optionalString (stdenv.isLinux && hostPlatform.libc == "glibc") ''
export LOCALE_ARCHIVE="${glibcLocales}/lib/locale/locale-archive"
'' + lib.optionalString (!stdenv.isDarwin) ''
export NIX_LDFLAGS+=" -rpath $out/lib/ghc-${version}"
'' + lib.optionalString stdenv.isDarwin ''
export NIX_LDFLAGS+=" -no_dtrace_dof"
# GHC tries the host xattr /usr/bin/xattr by default which fails since it expects python to be 2.7
export XATTR=${lib.getBin xattr}/bin/xattr
''
# If we are not using release tarballs, some files need to be generated using
# the boot script.
+ lib.optionalString (rev != null) ''
echo ${version} > VERSION
echo ${rev} > GIT_COMMIT_ID
./boot
''
+ lib.optionalString targetPlatform.useAndroidPrebuilt ''
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
'' + lib.optionalString targetPlatform.isMusl ''
echo "patching llvm-targets for musl targets..."
echo "Cloning these existing '*-linux-gnu*' targets:"
grep linux-gnu llvm-targets | sed 's/^/ /'
echo "(go go gadget sed)"
sed -i 's,\(^.*linux-\)gnu\(.*\)$,\0\n\1musl\2,' llvm-targets
echo "llvm-targets now contains these '*-linux-musl*' targets:"
grep linux-musl llvm-targets | sed 's/^/ /'
echo "And now patching to preserve '-musleabi' as done with '-gnueabi'"
# (aclocal.m4 is actual source, but patch configure as well since we don't re-gen)
for x in configure aclocal.m4; do
substituteInPlace $x \
--replace '*-android*|*-gnueabi*)' \
'*-android*|*-gnueabi*|*-musleabi*)'
done
''
# Need to make writable EM_CACHE for emscripten
# https://gitlab.haskell.org/ghc/ghc/-/wikis/javascript-backend#configure-fails-with-sub-word-sized-atomic-operations-not-available
+ lib.optionalString targetPlatform.isGhcjs ''
export EM_CACHE="$(mktemp -d emcache.XXXXXXXXXX)"
cp -Lr ${targetCC /* == emscripten */}/share/emscripten/cache/* "$EM_CACHE/"
chmod u+rwX -R "$EM_CACHE"
''
# Create bash array hadrianFlagsArray for use in buildPhase. Do it in
# preConfigure, so overrideAttrs can be used to modify it effectively.
# hadrianSettings are passed via the command line so they are more visible
# in the build log.
+ ''
hadrianFlagsArray=(
"-j$NIX_BUILD_CORES"
${lib.escapeShellArgs hadrianSettings}
)
'';
${if targetPlatform.isGhcjs then "configureScript" else null} = "emconfigure ./configure";
# GHC currently ships an edited config.sub so ghcjs is accepted which we can not rollback
${if targetPlatform.isGhcjs then "dontUpdateAutotoolsGnuConfigScripts" else null} = true;
# TODO(@Ericson2314): Always pass "--target" and always prefix.
configurePlatforms = [ "build" "host" ]
++ lib.optional (targetPlatform != hostPlatform) "target";
# `--with` flags for libraries needed for RTS linker
configureFlags = [
"--datadir=$doc/share/doc/ghc"
"--with-curses-includes=${ncurses.dev}/include" "--with-curses-libraries=${ncurses.out}/lib"
] ++ lib.optionals (libffi != null && !targetPlatform.isGhcjs) [
"--with-system-libffi"
"--with-ffi-includes=${targetPackages.libffi.dev}/include"
"--with-ffi-libraries=${targetPackages.libffi.out}/lib"
] ++ lib.optionals (targetPlatform == hostPlatform && !enableNativeBignum) [
"--with-gmp-includes=${targetPackages.gmp.dev}/include"
"--with-gmp-libraries=${targetPackages.gmp.out}/lib"
] ++ lib.optionals (targetPlatform == hostPlatform && hostPlatform.libc != "glibc" && !targetPlatform.isWindows) [
"--with-iconv-includes=${libiconv}/include"
"--with-iconv-libraries=${libiconv}/lib"
] ++ lib.optionals (targetPlatform != hostPlatform) [
"--enable-bootstrap-with-devel-snapshot"
] ++ lib.optionals useLdGold [
"CFLAGS=-fuse-ld=gold"
"CONF_GCC_LINKER_OPTS_STAGE1=-fuse-ld=gold"
"CONF_GCC_LINKER_OPTS_STAGE2=-fuse-ld=gold"
] ++ lib.optionals (disableLargeAddressSpace) [
"--disable-large-address-space"
] ++ lib.optionals enableDwarf [
"--enable-dwarf-unwind"
"--with-libdw-includes=${lib.getDev elfutils}/include"
"--with-libdw-libraries=${lib.getLib elfutils}/lib"
] ++ lib.optionals targetPlatform.isDarwin [
# Darwin uses llvm-ar. GHC will try to use `-L` with `ar` when it is `llvm-ar`
# but it doesnt currently work because Cabal never uses `-L` on Darwin. See:
# https://gitlab.haskell.org/ghc/ghc/-/issues/23188
# https://github.com/haskell/cabal/issues/8882
"fp_cv_prog_ar_supports_dash_l=no"
];
# Make sure we never relax`$PATH` and hooks support for compatibility.
strictDeps = true;
# Dont add -liconv to LDFLAGS automatically so that GHC will add it itself.
dontAddExtraLibs = true;
nativeBuildInputs = [
perl ghc hadrian bootPkgs.alex bootPkgs.happy bootPkgs.hscolour
# autoconf and friends are necessary for hadrian to create the bindist
autoconf automake m4
# Python is used in a few scripts invoked by hadrian to generate e.g. rts headers.
python3
] ++ lib.optionals (stdenv.isDarwin && stdenv.isAarch64) [
autoSignDarwinBinariesHook
] ++ lib.optionals enableDocs [
sphinx
];
# For building runtime libs
depsBuildTarget = toolsForTarget;
buildInputs = [ perl bash ] ++ (libDeps hostPlatform);
depsTargetTarget = map lib.getDev (libDeps targetPlatform);
depsTargetTargetPropagated = map (lib.getOutput "out") (libDeps targetPlatform);
hadrianFlags = [
"--flavour=${ghcFlavour}"
"--bignum=${if enableNativeBignum then "native" else "gmp"}"
"--docs=${if enableDocs then "no-sphinx-pdfs" else "no-sphinx"}"
];
buildPhase = ''
runHook preBuild
# hadrianFlagsArray is created in preConfigure
echo "hadrianFlags: $hadrianFlags ''${hadrianFlagsArray[@]}"
# We need to go via the bindist for installing
hadrian $hadrianFlags "''${hadrianFlagsArray[@]}" binary-dist-dir
runHook postBuild
'';
# required, because otherwise all symbols from HSffi.o are stripped, and
# that in turn causes GHCi to abort
stripDebugFlags = [ "-S" ] ++ lib.optional (!targetPlatform.isDarwin) "--keep-file-symbols";
checkTarget = "test";
hardeningDisable =
[ "format" ]
# In nixpkgs, musl based builds currently enable `pie` hardening by default
# (see `defaultHardeningFlags` in `make-derivation.nix`).
# But GHC cannot currently produce outputs that are ready for `-pie` linking.
# Thus, disable `pie` hardening, otherwise `recompile with -fPIE` errors appear.
# See:
# * https://github.com/NixOS/nixpkgs/issues/129247
# * https://gitlab.haskell.org/ghc/ghc/-/issues/19580
++ lib.optional stdenv.targetPlatform.isMusl "pie";
# big-parallel allows us to build with more than 2 cores on
# Hydra which already warrants a significant speedup
requiredSystemFeatures = [ "big-parallel" ];
outputs = [ "out" "doc" ];
# We need to configure the bindist *again* before installing
# https://gitlab.haskell.org/ghc/ghc/-/issues/22058
# TODO(@sternenseemann): it would be nice if the bindist could be an intermediate
# derivation, but since it is > 2GB even on x86_64-linux, not a good idea?
preInstall = ''
pushd _build/bindist/*
$configureScript $configureFlags "''${configureFlagsArray[@]}"
'';
postInstall = ''
# leave bindist directory
popd
# Install the bash completion file.
install -Dm 644 utils/completion/ghc.bash $out/share/bash-completion/completions/${targetPrefix}ghc
'';
passthru = {
inherit bootPkgs targetPrefix;
inherit llvmPackages;
inherit enableShared;
# Our Cabal compiler name
haskellCompilerName = "ghc-${version}";
# Expose hadrian used for bootstrapping, for debugging purposes
inherit hadrian;
};
meta = {
homepage = "http://haskell.org/ghc";
description = "The Glasgow Haskell Compiler";
maintainers = with lib.maintainers; [
guibou
] ++ lib.teams.haskell.members;
timeout = 24 * 3600;
inherit (ghc.meta) license platforms;
};
dontStrip = targetPlatform.useAndroidPrebuilt || targetPlatform.isWasm;
} // lib.optionalAttrs targetPlatform.useAndroidPrebuilt {
dontPatchELF = true;
noAuditTmpdir = true;
})