da60f2dc9c
Initial port of our GHC Nix expressions to the new hadrian build system, as it has become required after 9.4. Unfortunately there are some regressions affecting us, namely the inability to install a GHC cross-compiler at the moment (see issue linked in relevant error message). This means that a lot of specific configuration snippets for cross-platforms and static compilation have been ported from make speculatively, as we are unable to test them for the moment.
370 lines
15 KiB
Nix
370 lines
15 KiB
Nix
# DO NOT port this expression to hadrian. It is not possible to build a GHC
|
||
# cross compiler with 9.4.* and hadrian.
|
||
{ lib, stdenv, pkgsBuildTarget, pkgsHostTarget, targetPackages
|
||
|
||
# build-tools
|
||
, bootPkgs
|
||
, autoconf, automake, coreutils, fetchpatch, fetchurl, 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))
|
||
, # LLVM is conceptually a run-time-only depedendency, 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)
|
||
, 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
|
||
|
||
, # Whether to build terminfo.
|
||
enableTerminfo ? !stdenv.targetPlatform.isWindows
|
||
|
||
, # What flavour to build. An empty string indicates no
|
||
# specific flavour and falls back to ghc default values.
|
||
ghcFlavour ? lib.optionalString (stdenv.targetPlatform != stdenv.hostPlatform)
|
||
(if useLLVM then "perf-cross" else "perf-cross-ncg")
|
||
|
||
, # 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
|
||
)
|
||
|
||
, enableHaddockProgram ?
|
||
# Disabled for cross; see note [HADDOCK_DOCS].
|
||
(stdenv.targetPlatform == stdenv.hostPlatform)
|
||
|
||
, # 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;
|
||
|
||
# Cross cannot currently build the `haddock` program for silly reasons,
|
||
# see note [HADDOCK_DOCS].
|
||
assert (stdenv.targetPlatform != stdenv.hostPlatform) -> !enableHaddockProgram;
|
||
|
||
let
|
||
inherit (stdenv) buildPlatform hostPlatform targetPlatform;
|
||
|
||
inherit (bootPkgs) ghc;
|
||
|
||
# TODO(@Ericson2314) Make unconditional
|
||
targetPrefix = lib.optionalString
|
||
(targetPlatform != hostPlatform)
|
||
"${targetPlatform.config}-";
|
||
|
||
buildMK = ''
|
||
BuildFlavour = ${ghcFlavour}
|
||
ifneq \"\$(BuildFlavour)\" \"\"
|
||
include mk/flavours/\$(BuildFlavour).mk
|
||
endif
|
||
BUILD_SPHINX_HTML = ${if enableDocs then "YES" else "NO"}
|
||
BUILD_SPHINX_PDF = NO
|
||
'' +
|
||
# Note [HADDOCK_DOCS]:
|
||
# Unfortunately currently `HADDOCK_DOCS` controls both whether the `haddock`
|
||
# program is built (which we generally always want to have a complete GHC install)
|
||
# and whether it is run on the GHC sources to generate hyperlinked source code
|
||
# (which is impossible for cross-compilation); see:
|
||
# https://gitlab.haskell.org/ghc/ghc/-/issues/20077
|
||
# This implies that currently a cross-compiled GHC will never have a `haddock`
|
||
# program, so it can never generate haddocks for any packages.
|
||
# If this is solved in the future, we'd like to unconditionally
|
||
# build the haddock program (removing the `enableHaddockProgram` option).
|
||
''
|
||
HADDOCK_DOCS = ${if enableHaddockProgram then "YES" else "NO"}
|
||
# Build haddocks for boot packages with hyperlinking
|
||
EXTRA_HADDOCK_OPTS += --hyperlinked-source --quickjump
|
||
|
||
DYNAMIC_GHC_PROGRAMS = ${if enableShared then "YES" else "NO"}
|
||
BIGNUM_BACKEND = ${if enableNativeBignum then "native" else "gmp"}
|
||
'' + lib.optionalString (targetPlatform != hostPlatform) ''
|
||
Stage1Only = ${if targetPlatform.system == hostPlatform.system then "NO" else "YES"}
|
||
CrossCompilePrefix = ${targetPrefix}
|
||
'' + lib.optionalString (!enableProfiledLibs) ''
|
||
GhcLibWays = "v dyn"
|
||
'' +
|
||
# -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.optionalString enableRelocatedStaticLibs ''
|
||
GhcLibHcOpts += -fPIC -fexternal-dynamic-refs
|
||
GhcRtsHcOpts += -fPIC -fexternal-dynamic-refs
|
||
'' + lib.optionalString targetPlatform.useAndroidPrebuilt ''
|
||
EXTRA_CC_OPTS += -std=gnu99
|
||
'';
|
||
|
||
# Splicer will pull out correct variations
|
||
libDeps = platform: lib.optional enableTerminfo ncurses
|
||
++ [libffi]
|
||
++ lib.optional (!enableNativeBignum) gmp
|
||
++ lib.optional (platform.libc != "glibc" && !targetPlatform.isWindows) libiconv;
|
||
|
||
# TODO(@sternenseemann): is buildTarget LLVM unnecessary?
|
||
# GHC doesn't seem to have {LLC,OPT}_HOST
|
||
toolsForTarget = [
|
||
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 targetCC == pkgsHostTarget.targetPackages.stdenv.cc;
|
||
assert buildTargetLlvmPackages.llvm == llvmPackages.llvm;
|
||
assert stdenv.targetPlatform.isDarwin -> buildTargetLlvmPackages.clang == llvmPackages.clang;
|
||
|
||
stdenv.mkDerivation (rec {
|
||
version = "9.4.2";
|
||
pname = "${targetPrefix}ghc${variantSuffix}";
|
||
|
||
src = fetchurl {
|
||
url = "https://downloads.haskell.org/ghc/${version}/ghc-${version}-src.tar.xz";
|
||
sha256 = "7227ef3b5e15a0d70b8f1a43aec32867e2a9b2d857cc0ed556aeed172d4db3a5";
|
||
};
|
||
|
||
enableParallelBuilding = true;
|
||
|
||
outputs = [ "out" "doc" ];
|
||
|
||
|
||
postPatch = "patchShebangs .";
|
||
|
||
# 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"
|
||
'' + ''
|
||
|
||
echo -n "${buildMK}" > mk/build.mk
|
||
|
||
sed -i -e 's|-isysroot /Developer/SDKs/MacOSX10.5.sdk||' configure
|
||
'' + lib.optionalString (stdenv.isLinux && hostPlatform.libc == "glibc") ''
|
||
export LOCALE_ARCHIVE="${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
|
||
'' + 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 $x \
|
||
--replace '*-android*|*-gnueabi*)' \
|
||
'*-android*|*-gnueabi*|*-musleabi*)'
|
||
done
|
||
''
|
||
# HACK: allow bootstrapping with GHC 8.10 which works fine, as we don't have
|
||
# binary 9.0 packaged. Bootstrapping with 9.2 is broken without hadrian.
|
||
+ ''
|
||
substituteInPlace configure --replace \
|
||
'MinBootGhcVersion="9.0"' \
|
||
'MinBootGhcVersion="8.10"'
|
||
'';
|
||
|
||
# TODO(@Ericson2314): Always pass "--target" and always prefix.
|
||
configurePlatforms = [ "build" "host" ]
|
||
++ lib.optional (targetPlatform != hostPlatform) "target";
|
||
|
||
# `--with` flags for libraries needed for RTS linker
|
||
configureFlags = [
|
||
"--datadir=$doc/share/doc/ghc"
|
||
"--with-curses-includes=${ncurses.dev}/include" "--with-curses-libraries=${ncurses.out}/lib"
|
||
] ++ lib.optionals (libffi != null) [
|
||
"--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"
|
||
];
|
||
|
||
# Make sure we never relax`$PATH` and hooks support for compatibility.
|
||
strictDeps = true;
|
||
|
||
# Don’t add -liconv to LDFLAGS automatically so that GHC will add it itself.
|
||
dontAddExtraLibs = true;
|
||
|
||
nativeBuildInputs = [
|
||
perl autoconf automake m4 python3
|
||
ghc bootPkgs.alex bootPkgs.happy bootPkgs.hscolour
|
||
] ++ 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);
|
||
|
||
# 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" ];
|
||
|
||
postInstall = ''
|
||
# Install the bash completion file.
|
||
install -D -m 444 utils/completion/ghc.bash $out/share/bash-completion/completions/${targetPrefix}ghc
|
||
'';
|
||
|
||
passthru = {
|
||
inherit bootPkgs targetPrefix;
|
||
|
||
inherit llvmPackages;
|
||
inherit enableShared;
|
||
|
||
# This is used by the haskell builder to query
|
||
# the presence of the haddock program.
|
||
hasHaddock = enableHaddockProgram;
|
||
|
||
# Our Cabal compiler name
|
||
haskellCompilerName = "ghc-${version}";
|
||
};
|
||
|
||
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;
|
||
};
|
||
|
||
} // lib.optionalAttrs targetPlatform.useAndroidPrebuilt {
|
||
dontStrip = true;
|
||
dontPatchELF = true;
|
||
noAuditTmpdir = true;
|
||
})
|