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{ stdenv, removeReferencesTo, pkgsBuildBuild, pkgsBuildHost, pkgsBuildTarget
, fetchurl, file, python3
, llvm_9, darwin, git, cmake, rust, rustPlatform
, pkgconfig, openssl
, which, libffi
, withBundledLLVM ? false
, enableRustcDev ? true
, version
, sha256
}:
let
inherit (stdenv.lib) optionals optional optionalString;
inherit (darwin.apple_sdk.frameworks) Security;
llvmSharedForBuild = pkgsBuildBuild.llvm_9.override { enableSharedLibraries = true; };
llvmSharedForHost = pkgsBuildHost.llvm_9.override { enableSharedLibraries = true; };
llvmSharedForTarget = pkgsBuildTarget.llvm_9.override { enableSharedLibraries = true; };
# For use at runtime
llvmShared = llvm_9.override { enableSharedLibraries = true; };
in stdenv.mkDerivation rec {
pname = "rustc";
inherit version;
src = fetchurl {
url = "https://static.rust-lang.org/dist/rustc-${version}-src.tar.gz";
inherit sha256;
};
__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" ];
NIX_LDFLAGS = toString (
# when linking stage1 libstd: cc: undefined reference to `__cxa_begin_catch'
optional (stdenv.isLinux && !withBundledLLVM) "--push-state --as-needed -lstdc++ --pop-state"
++ optional (stdenv.isDarwin && !withBundledLLVM) "-lc++"
++ optional stdenv.isDarwin "-rpath ${llvmSharedForHost}/lib");
# Increase codegen units to introduce parallelism within the compiler.
RUSTFLAGS = "-Ccodegen-units=10";
# We need rust to build rust. If we don't provide it, configure will try to download it.
# Reference: https://github.com/rust-lang/rust/blob/master/src/bootstrap/configure.py
configureFlags = let
setBuild = "--set=target.${rust.toRustTarget stdenv.buildPlatform}";
setHost = "--set=target.${rust.toRustTarget stdenv.hostPlatform}";
setTarget = "--set=target.${rust.toRustTarget stdenv.targetPlatform}";
ccForBuild = "${pkgsBuildBuild.targetPackages.stdenv.cc}/bin/${pkgsBuildBuild.targetPackages.stdenv.cc.targetPrefix}cc";
cxxForBuild = "${pkgsBuildBuild.targetPackages.stdenv.cc}/bin/${pkgsBuildBuild.targetPackages.stdenv.cc.targetPrefix}c++";
ccForHost = "${pkgsBuildHost.targetPackages.stdenv.cc}/bin/${pkgsBuildHost.targetPackages.stdenv.cc.targetPrefix}cc";
cxxForHost = "${pkgsBuildHost.targetPackages.stdenv.cc}/bin/${pkgsBuildHost.targetPackages.stdenv.cc.targetPrefix}c++";
ccForTarget = "${pkgsBuildTarget.targetPackages.stdenv.cc}/bin/${pkgsBuildTarget.targetPackages.stdenv.cc.targetPrefix}cc";
cxxForTarget = "${pkgsBuildTarget.targetPackages.stdenv.cc}/bin/${pkgsBuildTarget.targetPackages.stdenv.cc.targetPrefix}c++";
in [
"--release-channel=stable"
"--set=build.rustc=${rustPlatform.rust.rustc}/bin/rustc"
"--set=build.cargo=${rustPlatform.rust.cargo}/bin/cargo"
"--enable-rpath"
"--enable-vendor"
"--build=${rust.toRustTarget stdenv.buildPlatform}"
"--host=${rust.toRustTarget stdenv.hostPlatform}"
"--target=${rust.toRustTarget stdenv.targetPlatform}"
"${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=${cxxForTarget}"
] ++ optionals (!withBundledLLVM) [
"--enable-llvm-link-shared"
"${setBuild}.llvm-config=${llvmSharedForBuild}/bin/llvm-config"
"${setHost}.llvm-config=${llvmSharedForHost}/bin/llvm-config"
"${setTarget}.llvm-config=${llvmSharedForTarget}/bin/llvm-config"
] ++ optionals stdenv.isLinux [
"--enable-profiler" # build libprofiler_builtins
];
# The bootstrap.py will generated a Makefile that then executes the build.
# The BOOTSTRAP_ARGS used by this Makefile must include all flags to pass
# to the bootstrap builder.
postConfigure = ''
substituteInPlace Makefile \
--replace 'BOOTSTRAP_ARGS :=' 'BOOTSTRAP_ARGS := --jobs $(NIX_BUILD_CORES)'
'';
# the rust build system complains that nix alters the checksums
dontFixLibtool = true;
postPatch = ''
patchShebangs src/etc
${optionalString (!withBundledLLVM) ''rm -rf src/llvm''}
# Fix the configure script to not require curl as we won't use it
sed -i configure \
-e '/probe_need CFG_CURL curl/d'
# Useful debugging parameter
# export VERBOSE=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;
nativeBuildInputs = [
file python3 rustPlatform.rust.rustc git cmake
which libffi removeReferencesTo pkgconfig
];
buildInputs = [ openssl ]
++ optional stdenv.isDarwin Security
++ optional (!withBundledLLVM) llvmShared;
outputs = [ "out" "man" "doc" ];
setOutputFlags = false;
postInstall = stdenv.lib.optionalString enableRustcDev ''
# 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/
'' + ''
# 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} '{}' '+'
'';
configurePlatforms = [];
# https://github.com/NixOS/nixpkgs/pull/21742#issuecomment-272305764
# https://github.com/rust-lang/rust/issues/30181
# enableParallelBuilding = false;
setupHooks = ./setup-hook.sh;
requiredSystemFeatures = [ "big-parallel" ];
meta = with stdenv.lib; {
homepage = https://www.rust-lang.org/;
description = "A safe, concurrent, practical language";
maintainers = with maintainers; [ madjar cstrahan globin havvy ];
license = [ licenses.mit licenses.asl20 ];
platforms = platforms.linux ++ platforms.darwin;
};
}
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