Rodrigo Arias Mallo
932d273ec7
The zlib is required by the lld linker to work with zlib compressed sections in the ELF header. We also set the LD_LIBRARY_PATH during the build, as otherwise the llvm-tblgen binary is unable to find the zlib library, as its missing the directory in the rpath.
100 lines
2.2 KiB
Nix
100 lines
2.2 KiB
Nix
{
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stdenv
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, fetchFromGitHub
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, cmake
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, lld
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, bash
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, python3
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, perl
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, which
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, elfutils
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, libffi
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, zlib
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, pkg-config
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, enableDebug ? false
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}:
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stdenv.mkDerivation rec {
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version = "2023.05";
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pname = "clang-ompss2";
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src = fetchFromGitHub {
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owner = "bsc-pm";
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repo = "llvm";
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rev = "refs/tags/github-release-${version}";
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sha256 = "sha256-AWkIfF3ZuYqbwkXt5L5cs+obl7aXuyYGVOVHMauD4Wk=";
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};
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enableParallelBuilding = true;
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isClang = true;
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passthru = {
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CC = "clang";
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CXX = "clang++";
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};
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isClangWithOmpss = true;
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nativeBuildInputs = [ zlib ];
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buildInputs = [
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which
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bash
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python3
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perl
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cmake
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lld
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elfutils
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libffi
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pkg-config
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zlib
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];
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# Error with -D_FORTIFY_SOURCE=2, see https://bugs.gentoo.org/636604:
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# /build/source/compiler-rt/lib/tsan/dd/dd_interceptors.cpp:225:20:
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# error: redefinition of 'realpath'
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# Requires disabling the "fortify" set of flags, however, for performance we
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# disable all:
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hardeningDisable = [ "all" ];
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cmakeBuildType = if enableDebug then "Debug" else "Release";
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dontUseCmakeBuildDir = true;
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enableAssertions = if enableDebug then "ON" else "OFF";
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preConfigure = ''
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mkdir -p build
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cd build
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cmakeDir="../llvm"
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cmakeFlagsArray=(
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"-DLLVM_ENABLE_LLD=ON"
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"-DCMAKE_CXX_FLAGS_DEBUG=-g -ggnu-pubnames"
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"-DCMAKE_EXE_LINKER_FLAGS_DEBUG=-Wl,-gdb-index"
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"-DLLVM_LIT_ARGS=-sv --xunit-xml-output=xunit.xml"
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"-DLLVM_ENABLE_PROJECTS=clang;openmp;compiler-rt;lld"
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"-DLLVM_ENABLE_ASSERTIONS=${enableAssertions}"
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"-DLLVM_INSTALL_TOOLCHAIN_ONLY=ON"
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"-DCMAKE_INSTALL_BINDIR=bin"
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"-DLLVM_ENABLE_ZLIB=FORCE_ON"
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"-DLLVM_ENABLE_LIBXML2=OFF"
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)
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'';
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# Workaround the problem with llvm-tblgen and missing zlib.so.1
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preBuild = ''
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export LD_LIBRARY_PATH=${zlib}/lib
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'';
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# Remove support for GNU and Intel Openmp
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postInstall = ''
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rm $out/lib/libgomp*
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rm $out/lib/libiomp*
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'';
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# About "-DCLANG_DEFAULT_NANOS6_HOME=${nanos6}", we could specify a default
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# nanos6 installation, but this is would require a recompilation of clang each
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# time nanos6 is changed. Better to use the environment variable NANOS6_HOME,
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# and specify nanos6 at run time.
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}
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