depot/pkgs/development/compilers/rust/rustc.nix
Luke Granger-Brown 57725ef3ec Squashed 'third_party/nixpkgs/' content from commit 76612b17c0ce
git-subtree-dir: third_party/nixpkgs
git-subtree-split: 76612b17c0ce71689921ca12d9ffdc9c23ce40b2
2024-11-10 23:59:47 +00:00

325 lines
14 KiB
Nix

{ lib, stdenv, removeReferencesTo, pkgsBuildBuild, pkgsBuildHost, pkgsBuildTarget, targetPackages
, llvmShared, llvmSharedForBuild, llvmSharedForHost, llvmSharedForTarget, llvmPackages
, runCommandLocal, fetchurl, file, python3
, darwin, cargo, cmake, rustc, rustfmt
, pkg-config, openssl, xz, zlib
, bintools
, libiconv
, which, libffi
, withBundledLLVM ? false
, enableRustcDev ? true
, version
, sha256
, patches ? []
, fd
, ripgrep
, wezterm
, firefox
, thunderbird
# This only builds std for target and reuses the rustc from build.
, fastCross
, lndir
, makeWrapper
}:
let
inherit (lib) optionals optional optionalString concatStringsSep;
inherit (darwin.apple_sdk.frameworks) Security;
useLLVM = stdenv.targetPlatform.useLLVM or false;
in stdenv.mkDerivation (finalAttrs: {
pname = "${targetPackages.stdenv.cc.targetPrefix}rustc";
inherit version;
src = fetchurl {
url = "https://static.rust-lang.org/dist/rustc-${version}-src.tar.gz";
inherit sha256;
# See https://nixos.org/manual/nixpkgs/stable/#using-git-bisect-on-the-rust-compiler
passthru.isReleaseTarball = true;
};
hardeningDisable = optionals stdenv.cc.isClang [
# remove once https://github.com/NixOS/nixpkgs/issues/318674 is
# addressed properly
"zerocallusedregs"
];
__darwinAllowLocalNetworking = true;
# rustc complains about modified source files otherwise
dontUpdateAutotoolsGnuConfigScripts = true;
# Running the default `strip -S` command on Darwin corrupts the
# .rlib files in "lib/".
#
# See https://github.com/NixOS/nixpkgs/pull/34227
#
# Running `strip -S` when cross compiling can harm the cross rlibs.
# See: https://github.com/NixOS/nixpkgs/pull/56540#issuecomment-471624656
stripDebugList = [ "bin" ];
# The Rust pkg-config crate does not support prefixed pkg-config executables[1],
# but it does support checking these idiosyncratic PKG_CONFIG_${TRIPLE}
# environment variables.
# [1]: https://github.com/rust-lang/pkg-config-rs/issues/53
"PKG_CONFIG_${builtins.replaceStrings ["-"] ["_"] stdenv.buildPlatform.rust.rustcTarget}" =
"${pkgsBuildHost.stdenv.cc.targetPrefix}pkg-config";
NIX_LDFLAGS = toString (
# when linking stage1 libstd: cc: undefined reference to `__cxa_begin_catch'
# This doesn't apply to cross-building for FreeBSD because the host
# uses libstdc++, but the target (used for building std) uses libc++
optional (stdenv.hostPlatform.isLinux && !withBundledLLVM && !stdenv.targetPlatform.isFreeBSD && !useLLVM)
"--push-state --as-needed -lstdc++ --pop-state"
++ optional (stdenv.hostPlatform.isLinux && !withBundledLLVM && !stdenv.targetPlatform.isFreeBSD && useLLVM)
"--push-state --as-needed -L${llvmPackages.libcxx}/lib -lc++ -lc++abi -lLLVM-${lib.versions.major llvmPackages.llvm.version} --pop-state"
++ optional (stdenv.hostPlatform.isDarwin && !withBundledLLVM) "-lc++ -lc++abi"
++ optional stdenv.hostPlatform.isFreeBSD "-rpath ${llvmPackages.libunwind}/lib"
++ optional stdenv.hostPlatform.isDarwin "-rpath ${llvmSharedForHost.lib}/lib");
# Increase codegen units to introduce parallelism within the compiler.
RUSTFLAGS = "-Ccodegen-units=10";
RUSTDOCFLAGS = "-A rustdoc::broken-intra-doc-links";
# We need rust to build rust. If we don't provide it, configure will try to download it.
# Reference: https://github.com/rust-lang/rust/blob/master/src/bootstrap/configure.py
configureFlags = let
prefixForStdenv = stdenv: "${stdenv.cc}/bin/${stdenv.cc.targetPrefix}";
ccPrefixForStdenv = stdenv: "${prefixForStdenv stdenv}${if (stdenv.cc.isClang or false) then "clang" else "cc"}";
cxxPrefixForStdenv = stdenv: "${prefixForStdenv stdenv}${if (stdenv.cc.isClang or false) then "clang++" else "c++"}";
setBuild = "--set=target.${stdenv.buildPlatform.rust.rustcTarget}";
setHost = "--set=target.${stdenv.hostPlatform.rust.rustcTarget}";
setTarget = "--set=target.${stdenv.targetPlatform.rust.rustcTarget}";
ccForBuild = ccPrefixForStdenv pkgsBuildBuild.targetPackages.stdenv;
cxxForBuild = cxxPrefixForStdenv pkgsBuildBuild.targetPackages.stdenv;
ccForHost = ccPrefixForStdenv pkgsBuildHost.targetPackages.stdenv;
cxxForHost = cxxPrefixForStdenv pkgsBuildHost.targetPackages.stdenv;
ccForTarget = ccPrefixForStdenv pkgsBuildTarget.targetPackages.stdenv;
cxxForTarget = cxxPrefixForStdenv pkgsBuildTarget.targetPackages.stdenv;
in [
"--sysconfdir=${placeholder "out"}/etc"
"--release-channel=stable"
"--set=build.rustc=${rustc}/bin/rustc"
"--set=build.cargo=${cargo}/bin/cargo"
] ++ lib.optionals (!(finalAttrs.src.passthru.isReleaseTarball or false)) [
# release tarballs vendor the rustfmt source; when
# git-bisect'ing from upstream's git repo we must prevent
# attempts to download the missing source tarball
"--set=build.rustfmt=${rustfmt}/bin/rustfmt"
] ++ [
"--tools=rustc,rustdoc,rust-analyzer-proc-macro-srv"
"--enable-rpath"
"--enable-vendor"
# For Nixpkgs it makes more sense to use stdenv's linker than
# letting rustc build its own.
"--disable-lld"
"--build=${stdenv.buildPlatform.rust.rustcTargetSpec}"
"--host=${stdenv.hostPlatform.rust.rustcTargetSpec}"
# std is built for all platforms in --target.
"--target=${concatStringsSep "," ([
stdenv.targetPlatform.rust.rustcTargetSpec
# Other targets that don't need any extra dependencies to build.
] ++ optionals (!fastCross) [
"wasm32-unknown-unknown"
# (build!=target): When cross-building a compiler we need to add
# the build platform as well so rustc can compile build.rs
# scripts.
] ++ optionals (stdenv.buildPlatform != stdenv.targetPlatform && !fastCross) [
stdenv.buildPlatform.rust.rustcTargetSpec
# (host!=target): When building a cross-targeting compiler we
# need to add the host platform as well so rustc can compile
# build.rs scripts.
] ++ optionals (stdenv.hostPlatform != stdenv.targetPlatform && !fastCross) [
stdenv.hostPlatform.rust.rustcTargetSpec
])}"
"${setBuild}.cc=${ccForBuild}"
"${setHost}.cc=${ccForHost}"
"${setTarget}.cc=${ccForTarget}"
"${setBuild}.linker=${ccForBuild}"
"${setHost}.linker=${ccForHost}"
"${setTarget}.linker=${ccForTarget}"
"${setBuild}.cxx=${cxxForBuild}"
"${setHost}.cxx=${cxxForHost}"
"${setTarget}.cxx=${cxxForTarget}"
"${setBuild}.crt-static=${lib.boolToString stdenv.buildPlatform.isStatic}"
"${setHost}.crt-static=${lib.boolToString stdenv.hostPlatform.isStatic}"
"${setTarget}.crt-static=${lib.boolToString stdenv.targetPlatform.isStatic}"
] ++ optionals (!withBundledLLVM) [
"--enable-llvm-link-shared"
"${setBuild}.llvm-config=${llvmSharedForBuild.dev}/bin/llvm-config"
"${setHost}.llvm-config=${llvmSharedForHost.dev}/bin/llvm-config"
"${setTarget}.llvm-config=${llvmSharedForTarget.dev}/bin/llvm-config"
] ++ optionals fastCross [
# Since fastCross only builds std, it doesn't make sense (and
# doesn't work) to build a linker.
"--disable-llvm-bitcode-linker"
] ++ optionals (stdenv.targetPlatform.isLinux && !(stdenv.targetPlatform.useLLVM or false)) [
"--enable-profiler" # build libprofiler_builtins
] ++ optionals stdenv.buildPlatform.isMusl [
"${setBuild}.musl-root=${pkgsBuildBuild.targetPackages.stdenv.cc.libc}"
] ++ optionals stdenv.hostPlatform.isMusl [
"${setHost}.musl-root=${pkgsBuildHost.targetPackages.stdenv.cc.libc}"
] ++ optionals stdenv.targetPlatform.isMusl [
"${setTarget}.musl-root=${pkgsBuildTarget.targetPackages.stdenv.cc.libc}"
] ++ optionals stdenv.targetPlatform.rust.isNoStdTarget [
"--disable-docs"
] ++ optionals (stdenv.hostPlatform.isDarwin && stdenv.hostPlatform.isx86_64) [
# https://github.com/rust-lang/rust/issues/92173
"--set rust.jemalloc"
] ++ optionals (useLLVM && !stdenv.targetPlatform.isFreeBSD) [
# https://github.com/NixOS/nixpkgs/issues/311930
"--llvm-libunwind=${if withBundledLLVM then "in-tree" else "system"}"
"--enable-use-libcxx"
];
# if we already have a rust compiler for build just compile the target std
# library and reuse compiler
buildPhase = if fastCross then "
runHook preBuild
mkdir -p build/${stdenv.hostPlatform.rust.rustcTargetSpec}/stage0-{std,rustc}/${stdenv.hostPlatform.rust.rustcTargetSpec}/release/
ln -s ${rustc.unwrapped}/lib/rustlib/${stdenv.hostPlatform.rust.rustcTargetSpec}/libstd-*.so build/${stdenv.hostPlatform.rust.rustcTargetSpec}/stage0-std/${stdenv.hostPlatform.rust.rustcTargetSpec}/release/libstd.so
ln -s ${rustc.unwrapped}/lib/rustlib/${stdenv.hostPlatform.rust.rustcTargetSpec}/librustc_driver-*.so build/${stdenv.hostPlatform.rust.rustcTargetSpec}/stage0-rustc/${stdenv.hostPlatform.rust.rustcTargetSpec}/release/librustc.so
ln -s ${rustc.unwrapped}/bin/rustc build/${stdenv.hostPlatform.rust.rustcTargetSpec}/stage0-rustc/${stdenv.hostPlatform.rust.rustcTargetSpec}/release/rustc-main
touch build/${stdenv.hostPlatform.rust.rustcTargetSpec}/stage0-std/${stdenv.hostPlatform.rust.rustcTargetSpec}/release/.libstd.stamp
touch build/${stdenv.hostPlatform.rust.rustcTargetSpec}/stage0-rustc/${stdenv.hostPlatform.rust.rustcTargetSpec}/release/.librustc.stamp
python ./x.py --keep-stage=0 --stage=1 build library
runHook postBuild
" else null;
installPhase = if fastCross then ''
runHook preInstall
python ./x.py --keep-stage=0 --stage=1 install library/std
mkdir -v $out/bin $doc $man
ln -s ${rustc.unwrapped}/bin/{rustc,rustdoc} $out/bin
rm -rf -v $out/lib/rustlib/{manifest-rust-std-,}${stdenv.hostPlatform.rust.rustcTargetSpec}
ln -s ${rustc.unwrapped}/lib/rustlib/{manifest-rust-std-,}${stdenv.hostPlatform.rust.rustcTargetSpec} $out/lib/rustlib/
echo rust-std-${stdenv.hostPlatform.rust.rustcTargetSpec} >> $out/lib/rustlib/components
lndir ${rustc.doc} $doc
lndir ${rustc.man} $man
runHook postInstall
'' else null;
# the rust build system complains that nix alters the checksums
dontFixLibtool = true;
inherit patches;
postPatch = ''
patchShebangs src/etc
# rust-lld is the name rustup uses for its bundled lld, so that it
# doesn't conflict with any system lld. This is not an
# appropriate default for Nixpkgs, where there is no rust-lld.
substituteInPlace compiler/rustc_target/src/spec/*/*.rs \
--replace-quiet '"rust-lld"' '"lld"'
${optionalString (!withBundledLLVM) "rm -rf src/llvm"}
# Useful debugging parameter
# export VERBOSE=1
'' + lib.optionalString (stdenv.hostPlatform.isDarwin && stdenv.hostPlatform.isx86_64) ''
# See https://github.com/jemalloc/jemalloc/issues/1997
# Using a value of 48 should work on both emulated and native x86_64-darwin.
export JEMALLOC_SYS_WITH_LG_VADDR=48
'' + lib.optionalString (!(finalAttrs.src.passthru.isReleaseTarball or false)) ''
mkdir .cargo
cat > .cargo/config.toml <<\EOF
[source.crates-io]
replace-with = "vendored-sources"
[source.vendored-sources]
directory = "vendor"
EOF
'' + lib.optionalString (stdenv.hostPlatform.isFreeBSD) ''
# lzma-sys bundles an old version of xz that doesn't build
# on modern FreeBSD, use the system one instead
substituteInPlace src/bootstrap/src/core/build_steps/tool.rs \
--replace 'cargo.env("LZMA_API_STATIC", "1");' ' '
'';
# rustc unfortunately needs cmake to compile llvm-rt but doesn't
# use it for the normal build. This disables cmake in Nix.
dontUseCmakeConfigure = true;
depsBuildBuild = [ pkgsBuildHost.stdenv.cc pkg-config ];
depsBuildTarget = lib.optionals stdenv.targetPlatform.isMinGW [ bintools ];
nativeBuildInputs = [
file python3 rustc cmake
which libffi removeReferencesTo pkg-config xz
]
++ optionals fastCross [ lndir makeWrapper ];
buildInputs = [ openssl ]
++ optionals stdenv.hostPlatform.isDarwin [ libiconv Security zlib ]
++ optional (!withBundledLLVM) llvmShared.lib
++ optional (useLLVM && !withBundledLLVM && !stdenv.targetPlatform.isFreeBSD) [
llvmPackages.libunwind
# Hack which is used upstream https://github.com/gentoo/gentoo/blob/master/dev-lang/rust/rust-1.78.0.ebuild#L284
(runCommandLocal "libunwind-libgcc" {} ''
mkdir -p $out/lib
ln -s ${llvmPackages.libunwind}/lib/libunwind.so $out/lib/libgcc_s.so
ln -s ${llvmPackages.libunwind}/lib/libunwind.so $out/lib/libgcc_s.so.1
'')
];
outputs = [ "out" "man" "doc" ];
setOutputFlags = false;
postInstall = lib.optionalString (enableRustcDev && !fastCross) ''
# install rustc-dev components. Necessary to build rls, clippy...
python x.py dist rustc-dev
tar xf build/dist/rustc-dev*tar.gz
cp -r rustc-dev*/rustc-dev*/lib/* $out/lib/
rm $out/lib/rustlib/install.log
for m in $out/lib/rustlib/manifest-rust*
do
sort --output=$m < $m
done
'' + ''
# remove references to llvm-config in lib/rustlib/x86_64-unknown-linux-gnu/codegen-backends/librustc_codegen_llvm-llvm.so
# and thus a transitive dependency on ncurses
find $out/lib -name "*.so" -type f -exec remove-references-to -t ${llvmShared} '{}' '+'
# remove uninstall script that doesn't really make sense for Nix.
rm $out/lib/rustlib/uninstall.sh
'';
configurePlatforms = [];
enableParallelBuilding = true;
setupHooks = ./setup-hook.sh;
requiredSystemFeatures = [ "big-parallel" ];
passthru = {
llvm = llvmShared;
inherit llvmPackages;
inherit (rustc) tier1TargetPlatforms targetPlatforms badTargetPlatforms;
tests = {
inherit fd ripgrep wezterm;
} // lib.optionalAttrs stdenv.hostPlatform.isLinux { inherit firefox thunderbird; };
};
meta = with lib; {
homepage = "https://www.rust-lang.org/";
description = "Safe, concurrent, practical language";
maintainers = with maintainers; [ havvy ] ++ teams.rust.members;
license = [ licenses.mit licenses.asl20 ];
platforms = rustc.tier1TargetPlatforms;
# If rustc can't target a platform, we also can't build rustc for
# that platform.
badPlatforms = rustc.badTargetPlatforms;
};
})