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|
{ lib
, stdenv
, llvm_meta
, patches ? []
, src ? null
, monorepoSrc ? null
, runCommand
, substituteAll
, cmake
, ninja
, libxml2
, libllvm
, release_version
, version
, python3
, buildLlvmTools
, fixDarwinDylibNames
, enableManpages ? false
, clang-tools-extra_src ? null
}:
let
pname = "clang";
src' = if monorepoSrc != null then
runCommand "${pname}-src-${version}" {} ''
mkdir -p "$out"
cp -r ${monorepoSrc}/cmake "$out"
cp -r ${monorepoSrc}/${pname} "$out"
cp -r ${monorepoSrc}/clang-tools-extra "$out"
'' else src;
self = stdenv.mkDerivation (finalAttrs: rec {
inherit pname version patches;
src = src';
sourceRoot = if lib.versionOlder release_version "13" then null
else "${src.name}/${pname}";
nativeBuildInputs = [ cmake ]
++ (lib.optional (lib.versionAtLeast release_version "15") ninja)
++ [ python3 ]
++ lib.optional (lib.versionAtLeast version "18" && enableManpages) python3.pkgs.myst-parser
++ lib.optional enableManpages python3.pkgs.sphinx
++ lib.optional stdenv.hostPlatform.isDarwin fixDarwinDylibNames;
buildInputs = [ libxml2 libllvm ];
cmakeFlags = (lib.optionals (lib.versionAtLeast release_version "15") [
"-DCLANG_INSTALL_PACKAGE_DIR=${placeholder "dev"}/lib/cmake/clang"
]) ++ [
"-DCLANGD_BUILD_XPC=OFF"
"-DLLVM_ENABLE_RTTI=ON"
] ++ lib.optionals (lib.versionAtLeast release_version "17") [
"-DLLVM_INCLUDE_TESTS=OFF"
] ++ lib.optionals enableManpages [
"-DCLANG_INCLUDE_DOCS=ON"
"-DLLVM_ENABLE_SPHINX=ON"
"-DSPHINX_OUTPUT_MAN=ON"
"-DSPHINX_OUTPUT_HTML=OFF"
"-DSPHINX_WARNINGS_AS_ERRORS=OFF"
] ++ lib.optionals (stdenv.hostPlatform != stdenv.buildPlatform) ([
"-DLLVM_TABLEGEN_EXE=${buildLlvmTools.llvm}/bin/llvm-tblgen"
"-DCLANG_TABLEGEN=${buildLlvmTools.libclang.dev}/bin/clang-tblgen"
] ++ lib.optionals (lib.versionAtLeast release_version "15") [
# Added in LLVM15:
# `clang-tidy-confusable-chars-gen`: https://github.com/llvm/llvm-project/commit/c3574ef739fbfcc59d405985a3a4fa6f4619ecdb
# `clang-pseudo-gen`: https://github.com/llvm/llvm-project/commit/cd2292ef824591cc34cc299910a3098545c840c7
"-DCLANG_TIDY_CONFUSABLE_CHARS_GEN=${buildLlvmTools.libclang.dev}/bin/clang-tidy-confusable-chars-gen"
"-DCLANG_PSEUDO_GEN=${buildLlvmTools.libclang.dev}/bin/clang-pseudo-gen"
]);
postPatch = ''
# Make sure clang passes the correct location of libLTO to ld64
substituteInPlace lib/Driver/ToolChains/Darwin.cpp \
--replace-fail 'StringRef P = llvm::sys::path::parent_path(D.Dir);' 'StringRef P = "${lib.getLib libllvm}";'
'' + (if lib.versionOlder release_version "13" then ''
sed -i -e 's/DriverArgs.hasArg(options::OPT_nostdlibinc)/true/' \
-e 's/Args.hasArg(options::OPT_nostdlibinc)/true/' \
lib/Driver/ToolChains/*.cpp
'' else ''
(cd tools && ln -s ../../clang-tools-extra extra)
'') + lib.optionalString stdenv.hostPlatform.isMusl ''
sed -i -e 's/lgcc_s/lgcc_eh/' lib/Driver/ToolChains/*.cpp
'';
outputs = [ "out" "lib" "dev" "python" ];
postInstall = ''
ln -sv $out/bin/clang $out/bin/cpp
'' + (lib.optionalString (lib.versions.major release_version == "17") ''
mkdir -p $lib/lib/clang
mv $lib/lib/17 $lib/lib/clang/17
'') + ''
# Move libclang to 'lib' output
moveToOutput "lib/libclang.*" "$lib"
moveToOutput "lib/libclang-cpp.*" "$lib"
'' + (if lib.versionOlder release_version "15" then ''
substituteInPlace $out/lib/cmake/clang/ClangTargets-release.cmake \
--replace "\''${_IMPORT_PREFIX}/lib/libclang." "$lib/lib/libclang." \
--replace "\''${_IMPORT_PREFIX}/lib/libclang-cpp." "$lib/lib/libclang-cpp."
'' else ''
substituteInPlace $dev/lib/cmake/clang/ClangTargets-release.cmake \
--replace "\''${_IMPORT_PREFIX}/lib/libclang." "$lib/lib/libclang." \
--replace "\''${_IMPORT_PREFIX}/lib/libclang-cpp." "$lib/lib/libclang-cpp."
'') + ''
'' + (if lib.versionOlder release_version "15" then ''
mkdir -p $python/bin $python/share/{clang,scan-view}
'' else ''
mkdir -p $python/bin $python/share/clang/
'') + ''
mv $out/bin/{git-clang-format,scan-view} $python/bin
if [ -e $out/bin/set-xcode-analyzer ]; then
mv $out/bin/set-xcode-analyzer $python/bin
fi
mv $out/share/clang/*.py $python/share/clang
'' + (lib.optionalString (lib.versionOlder release_version "15") ''
mv $out/share/scan-view/*.py $python/share/scan-view
'') + ''
rm $out/bin/c-index-test
patchShebangs $python/bin
mkdir -p $dev/bin
'' + (if lib.versionOlder release_version "15" then ''
cp bin/clang-tblgen $dev/bin
'' else ''
cp bin/{clang-tblgen,clang-tidy-confusable-chars-gen,clang-pseudo-gen} $dev/bin
'');
passthru = {
inherit libllvm;
isClang = true;
} // (lib.optionalAttrs (lib.versionAtLeast release_version "15") {
hardeningUnsupportedFlags = [
"fortify3"
];
hardeningUnsupportedFlagsByTargetPlatform = targetPlatform:
lib.optional (!(targetPlatform.isx86_64 || targetPlatform.isAarch64)) "zerocallusedregs"
++ (finalAttrs.passthru.hardeningUnsupportedFlags or []);
}) // (lib.optionalAttrs (lib.versionOlder release_version "15") {
hardeningUnsupportedFlags = [ "fortify3" "zerocallusedregs" ];
});
meta = llvm_meta // {
homepage = "https://clang.llvm.org/";
description = "A C language family frontend for LLVM";
longDescription = ''
The Clang project provides a language front-end and tooling
infrastructure for languages in the C language family (C, C++, Objective
C/C++, OpenCL, CUDA, and RenderScript) for the LLVM project.
It aims to deliver amazingly fast compiles, extremely useful error and
warning messages and to provide a platform for building great source
level tools. The Clang Static Analyzer and clang-tidy are tools that
automatically find bugs in your code, and are great examples of the sort
of tools that can be built using the Clang frontend as a library to
parse C/C++ code.
'';
mainProgram = "clang";
};
} // lib.optionalAttrs enableManpages ({
pname = "clang-manpages";
installPhase = ''
mkdir -p $out/share/man/man1
# Manually install clang manpage
cp docs/man/*.1 $out/share/man/man1/
'';
outputs = [ "out" ];
doCheck = false;
meta = llvm_meta // {
description = "man page for Clang ${version}";
};
} // (if lib.versionOlder release_version "15" then {
buildPhase = ''
make docs-clang-man
'';
} else {
ninjaFlags = [ "docs-clang-man" ];
})) // (lib.optionalAttrs (clang-tools-extra_src != null) { inherit clang-tools-extra_src; })
// (lib.optionalAttrs (lib.versionOlder release_version "13") {
unpackPhase = ''
unpackFile $src
mv clang-* clang
sourceRoot=$PWD/clang
unpackFile ${clang-tools-extra_src}
mv clang-tools-extra-* $sourceRoot/tools/extra
substituteInPlace $sourceRoot/tools/extra/clangd/quality/CompletionModel.cmake \
--replace ' ''${CMAKE_SOURCE_DIR}/../clang-tools-extra' ' ''${CMAKE_SOURCE_DIR}/tools/extra'
'';
})
// (lib.optionalAttrs (lib.versionAtLeast release_version "15") {
env = lib.optionalAttrs (stdenv.buildPlatform != stdenv.hostPlatform) {
# The following warning is triggered with (at least) gcc >=
# 12, but appears to occur only for cross compiles.
NIX_CFLAGS_COMPILE = "-Wno-maybe-uninitialized";
};
}));
in self
|
