2cb440df72
Split outputs because there's no point in keeping a reference to Python and it causes trouble during the Darwin stdenv bootstrap. There's also an unnecessary dependency on LLVM in libc++ which causes us to rebuild LLVM several more times than necessary during bootstrap, and an awkward dependency on XPC in the TSAN that we turn off. This is in preparation for using LLVM 4 in the Darwin stdenv and by default across nixpkgs.
138 lines
4.6 KiB
Nix
138 lines
4.6 KiB
Nix
{ stdenv
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, fetch
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, fetchpatch
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, perl
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, groff
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, cmake
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, python
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, libffi
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, binutils
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, libxml2
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, valgrind
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, ncurses
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, version
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, release_version
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, zlib
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, compiler-rt_src
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, libcxxabi
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, debugVersion ? false
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, enableSharedLibraries ? true
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, darwin
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}:
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let
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src = fetch "llvm" "1giklnw71wzsgbqg9wb5x7dxnbj39m6zpfvskvzvhwvfz4fm244d";
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shlib = if stdenv.isDarwin then "dylib" else "so";
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# Used when creating a version-suffixed symlink of libLLVM.dylib
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shortVersion = with stdenv.lib;
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concatStringsSep "." (take 2 (splitString "." release_version));
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in stdenv.mkDerivation rec {
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name = "llvm-${version}";
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unpackPhase = ''
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unpackFile ${src}
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mv llvm-${version}* llvm
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sourceRoot=$PWD/llvm
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unpackFile ${compiler-rt_src}
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mv compiler-rt-* $sourceRoot/projects/compiler-rt
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'';
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outputs = [ "out" ] ++ stdenv.lib.optional enableSharedLibraries "lib";
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buildInputs = [ perl groff cmake libxml2 python libffi ]
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++ stdenv.lib.optionals stdenv.isDarwin [ libcxxabi ];
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propagatedBuildInputs = [ ncurses zlib ];
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# TSAN requires XPC on Darwin, which we have no public/free source files for. We can depend on the Apple frameworks
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# to get it, but they're unfree. Since LLVM is rather central to the stdenv, we patch out TSAN support so that Hydra
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# can build this. If we didn't do it, basically the entire nixpkgs on Darwin would have an unfree dependency and we'd
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# get no binary cache for the entire platform. If you really find yourself wanting the TSAN, make this controllable by
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# a flag and turn the flag off during the stdenv build.
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postPatch = stdenv.lib.optionalString stdenv.isDarwin ''
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substituteInPlace ./projects/compiler-rt/cmake/config-ix.cmake \
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--replace 'set(COMPILER_RT_HAS_TSAN TRUE)' 'set(COMPILER_RT_HAS_TSAN FALSE)'
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''
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# Patch llvm-config to return correct library path based on --link-{shared,static}.
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+ stdenv.lib.optionalString (enableSharedLibraries) ''
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substitute '${./llvm-outputs.patch}' ./llvm-outputs.patch --subst-var lib
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patch -p1 < ./llvm-outputs.patch
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''
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# Remove broken tests: (https://bugs.llvm.org//show_bug.cgi?id=31610)
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+ ''
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rm test/CodeGen/AMDGPU/invalid-opencl-version-metadata1.ll
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rm test/CodeGen/AMDGPU/invalid-opencl-version-metadata2.ll
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rm test/CodeGen/AMDGPU/invalid-opencl-version-metadata3.ll
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rm test/CodeGen/AMDGPU/runtime-metadata.ll
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'';
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# hacky fix: created binaries need to be run before installation
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preBuild = ''
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mkdir -p $out/
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ln -sv $PWD/lib $out
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'';
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cmakeFlags = with stdenv; [
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"-DCMAKE_BUILD_TYPE=${if debugVersion then "Debug" else "Release"}"
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"-DLLVM_INSTALL_UTILS=ON" # Needed by rustc
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"-DLLVM_BUILD_TESTS=ON"
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"-DLLVM_ENABLE_FFI=ON"
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"-DLLVM_ENABLE_RTTI=ON"
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"-DCOMPILER_RT_INCLUDE_TESTS=OFF" # FIXME: requires clang source code
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] ++ stdenv.lib.optional enableSharedLibraries [
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"-DLLVM_LINK_LLVM_DYLIB=ON"
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] ++ stdenv.lib.optional (!isDarwin)
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"-DLLVM_BINUTILS_INCDIR=${binutils.dev}/include"
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++ stdenv.lib.optionals (isDarwin) [
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"-DLLVM_ENABLE_LIBCXX=ON"
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"-DCAN_TARGET_i386=false"
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];
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postBuild = ''
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rm -fR $out
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paxmark m bin/{lli,llvm-rtdyld}
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paxmark m unittests/ExecutionEngine/MCJIT/MCJITTests
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paxmark m unittests/ExecutionEngine/Orc/OrcJITTests
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paxmark m unittests/Support/SupportTests
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paxmark m bin/lli-child-target
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'';
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preCheck = ''
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export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$PWD/lib
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'';
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postInstall = ""
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+ stdenv.lib.optionalString (enableSharedLibraries) ''
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moveToOutput "lib/libLLVM-*" "$lib"
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moveToOutput "lib/libLLVM.${shlib}" "$lib"
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substituteInPlace "$out/lib/cmake/llvm/LLVMExports-release.cmake" \
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--replace "\''${_IMPORT_PREFIX}/lib/libLLVM-" "$lib/lib/libLLVM-"
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''
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+ stdenv.lib.optionalString (stdenv.isDarwin && enableSharedLibraries) ''
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substituteInPlace "$out/lib/cmake/llvm/LLVMExports-release.cmake" \
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--replace "\''${_IMPORT_PREFIX}/lib/libLLVM.dylib" "$lib/lib/libLLVM.dylib"
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install_name_tool -id $lib/lib/libLLVM.dylib $lib/lib/libLLVM.dylib
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install_name_tool -change @rpath/libLLVM.dylib $lib/lib/libLLVM.dylib $out/bin/llvm-config
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ln -s $lib/lib/libLLVM.dylib $lib/lib/libLLVM-${shortVersion}.dylib
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ln -s $lib/lib/libLLVM.dylib $lib/lib/libLLVM-${release_version}.dylib
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'';
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doCheck = stdenv.isLinux;
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checkTarget = "check-all";
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enableParallelBuilding = true;
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passthru.src = src;
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meta = {
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description = "Collection of modular and reusable compiler and toolchain technologies";
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homepage = http://llvm.org/;
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license = stdenv.lib.licenses.ncsa;
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maintainers = with stdenv.lib.maintainers; [ lovek323 raskin viric dtzWill ];
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platforms = stdenv.lib.platforms.all;
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};
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}
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