463 lines
18 KiB
Ruby
463 lines
18 KiB
Ruby
class LlvmAT13 < Formula
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desc "Next-gen compiler infrastructure"
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homepage "https://llvm.org/"
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url "https://github.com/llvm/llvm-project/releases/download/llvmorg-13.0.1/llvm-project-13.0.1.src.tar.xz"
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sha256 "326335a830f2e32d06d0a36393b5455d17dc73e0bd1211065227ee014f92cbf8"
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# The LLVM Project is under the Apache License v2.0 with LLVM Exceptions
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license "Apache-2.0" => { with: "LLVM-exception" }
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revision 2
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bottle do
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sha256 cellar: :any, arm64_ventura: "c1a3b007a5da85217acd18b3b2bb390be6faf46f09f1073c28927c3ea592dae7"
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sha256 cellar: :any, arm64_monterey: "f261f288461d9babc19d79c2fe5d984e5b589fb675f172cc2492f7bfd64e56d0"
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sha256 cellar: :any, arm64_big_sur: "9e6f60b8d6b8b464345e7d9b9bf728f49fd2ad8c5cf45a7918ce3b60cc9efd91"
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sha256 cellar: :any, ventura: "02b9401a889bd8f3cdd564e90a925803c9c57415410d3ea0fae039e2c8af6293"
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sha256 cellar: :any, monterey: "703cc19867f51a059f71b9fe7c9ac20c0c10d1e39e04a57bbd272c2965f542bc"
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sha256 cellar: :any, big_sur: "8933be1d408ab802e7049201774922ff045e470d7e80fd570700e79bcf7055b9"
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sha256 cellar: :any, catalina: "b91e1b1154707fce05d16ef54abd886d9bf0fc38a625f0bf254420ad6e4474c0"
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sha256 cellar: :any_skip_relocation, x86_64_linux: "b6ad468ae8d3316c54fb5770f9a2f66f8be6970729b32f7daadd3c41ddbd6f75"
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end
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# Clang cannot find system headers if Xcode CLT is not installed
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pour_bottle? only_if: :clt_installed
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keg_only :versioned_formula
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# https://llvm.org/docs/GettingStarted.html#requirement
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# We intentionally use Make instead of Ninja.
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# See: Homebrew/homebrew-core/issues/35513
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depends_on "cmake" => :build
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depends_on "python@3.10" => :build
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uses_from_macos "python" => :test
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uses_from_macos "libedit"
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uses_from_macos "libffi", since: :catalina
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uses_from_macos "ncurses"
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uses_from_macos "zlib"
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on_linux do
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depends_on "pkg-config" => :build
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depends_on "binutils" # needed for gold
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depends_on "elfutils" # openmp requires <gelf.h>
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end
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def python3
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"python3.10"
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end
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def install
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# The clang bindings need a little help finding our libclang.
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inreplace "clang/bindings/python/clang/cindex.py",
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/^(\s*library_path\s*=\s*)None$/,
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"\\1'#{lib}'"
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projects = %w[
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clang
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clang-tools-extra
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lld
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mlir
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polly
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]
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runtimes = %w[
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compiler-rt
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libcxx
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libcxxabi
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libunwind
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]
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if OS.mac?
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runtimes << "openmp"
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else
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projects << "openmp"
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end
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python_versions = Formula.names
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.select { |name| name.start_with? "python@" }
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.map { |py| py.delete_prefix("python@") }
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site_packages = Language::Python.site_packages(python3).delete_prefix("lib/")
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# Apple's libstdc++ is too old to build LLVM
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ENV.libcxx if ENV.compiler == :clang
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# compiler-rt has some iOS simulator features that require i386 symbols
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# I'm assuming the rest of clang needs support too for 32-bit compilation
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# to work correctly, but if not, perhaps universal binaries could be
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# limited to compiler-rt. llvm makes this somewhat easier because compiler-rt
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# can almost be treated as an entirely different build from llvm.
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ENV.permit_arch_flags
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args = %W[
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-DLLVM_ENABLE_PROJECTS=#{projects.join(";")}
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-DLLVM_ENABLE_RUNTIMES=#{runtimes.join(";")}
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-DLLVM_POLLY_LINK_INTO_TOOLS=ON
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-DLLVM_BUILD_EXTERNAL_COMPILER_RT=ON
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-DLLVM_LINK_LLVM_DYLIB=ON
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-DLLVM_ENABLE_EH=ON
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-DLLVM_ENABLE_FFI=ON
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-DLLVM_ENABLE_RTTI=ON
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-DLLVM_INCLUDE_DOCS=OFF
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-DLLVM_INCLUDE_TESTS=OFF
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-DLLVM_INSTALL_UTILS=ON
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-DLLVM_ENABLE_Z3_SOLVER=OFF
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-DLLVM_OPTIMIZED_TABLEGEN=ON
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-DLLVM_TARGETS_TO_BUILD=all
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-DLIBOMP_INSTALL_ALIASES=OFF
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-DCLANG_PYTHON_BINDINGS_VERSIONS=#{python_versions.join(";")}
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-DLLVM_CREATE_XCODE_TOOLCHAIN=OFF
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-DPACKAGE_VENDOR=#{tap.user}
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-DBUG_REPORT_URL=#{tap.issues_url}
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-DCLANG_VENDOR_UTI=org.#{tap.user.downcase}.clang
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]
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macos_sdk = MacOS.sdk_path_if_needed
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if MacOS.version >= :catalina
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args << "-DFFI_INCLUDE_DIR=#{macos_sdk}/usr/include/ffi"
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args << "-DFFI_LIBRARY_DIR=#{macos_sdk}/usr/lib"
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else
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args << "-DFFI_INCLUDE_DIR=#{Formula["libffi"].opt_include}"
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args << "-DFFI_LIBRARY_DIR=#{Formula["libffi"].opt_lib}"
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end
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runtimes_cmake_args = []
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builtins_cmake_args = []
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if OS.mac?
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args << "-DLLVM_BUILD_LLVM_C_DYLIB=ON"
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args << "-DLLVM_ENABLE_LIBCXX=ON"
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args << "-DLIBCXX_INSTALL_LIBRARY_DIR=#{lib}/c++"
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args << "-DLIBCXXABI_INSTALL_LIBRARY_DIR=#{lib}/c++"
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args << "-DDEFAULT_SYSROOT=#{macos_sdk}" if macos_sdk
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runtimes_cmake_args << "-DCMAKE_INSTALL_RPATH=#{loader_path}"
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# Prevent CMake from defaulting to `lld` when it's found next to `clang`.
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# This can be removed after CMake 3.25. See:
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# https://gitlab.kitware.com/cmake/cmake/-/merge_requests/7671
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args << "-DLLVM_USE_LINKER=ld"
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[args, runtimes_cmake_args, builtins_cmake_args].each do |arg_array|
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arg_array << "-DCMAKE_LINKER=ld"
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end
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else
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# Disable `libxml2` which isn't very useful.
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args << "-DLLVM_ENABLE_LIBXML2=OFF"
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args << "-DLLVM_ENABLE_LIBCXX=OFF"
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args << "-DCLANG_DEFAULT_CXX_STDLIB=libstdc++"
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# Enable llvm gold plugin for LTO
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args << "-DLLVM_BINUTILS_INCDIR=#{Formula["binutils"].opt_include}"
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# Parts of Polly fail to correctly build with PIC when being used for DSOs.
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args << "-DCMAKE_POSITION_INDEPENDENT_CODE=ON"
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runtimes_cmake_args += %w[
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-DLLVM_ENABLE_PER_TARGET_RUNTIME_DIR=OFF
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-DCMAKE_POSITION_INDEPENDENT_CODE=ON
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-DLIBCXX_ENABLE_STATIC_ABI_LIBRARY=ON
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-DLIBCXX_STATICALLY_LINK_ABI_IN_SHARED_LIBRARY=OFF
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-DLIBCXX_STATICALLY_LINK_ABI_IN_STATIC_LIBRARY=ON
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-DLIBCXX_USE_COMPILER_RT=ON
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-DLIBCXX_HAS_ATOMIC_LIB=OFF
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-DLIBCXXABI_ENABLE_STATIC_UNWINDER=ON
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-DLIBCXXABI_STATICALLY_LINK_UNWINDER_IN_SHARED_LIBRARY=OFF
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-DLIBCXXABI_STATICALLY_LINK_UNWINDER_IN_STATIC_LIBRARY=ON
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-DLIBCXXABI_USE_COMPILER_RT=ON
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-DLIBCXXABI_USE_LLVM_UNWINDER=ON
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-DLIBUNWIND_USE_COMPILER_RT=ON
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-DCOMPILER_RT_USE_BUILTINS_LIBRARY=ON
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-DSANITIZER_CXX_ABI=libc++
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-DSANITIZER_TEST_CXX=libc++
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]
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# Prevent compiler-rt from building i386 targets, as this is not portable.
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builtins_cmake_args << "-DCOMPILER_RT_DEFAULT_TARGET_ONLY=ON"
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end
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if ENV.cflags.present?
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args << "-DCMAKE_C_FLAGS=#{ENV.cflags}"
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runtimes_cmake_args << "-DCMAKE_C_FLAGS=#{ENV.cflags}"
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builtins_cmake_args << "-DCMAKE_C_FLAGS=#{ENV.cflags}"
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end
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if ENV.cxxflags.present?
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args << "-DCMAKE_CXX_FLAGS=#{ENV.cxxflags}"
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runtimes_cmake_args << "-DCMAKE_CXX_FLAGS=#{ENV.cxxflags}"
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builtins_cmake_args << "-DCMAKE_CXX_FLAGS=#{ENV.cxxflags}"
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end
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args << "-DRUNTIMES_CMAKE_ARGS=#{runtimes_cmake_args.join(";")}" if runtimes_cmake_args.present?
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args << "-DBUILTINS_CMAKE_ARGS=#{builtins_cmake_args.join(";")}" if builtins_cmake_args.present?
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llvmpath = buildpath/"llvm"
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# Now, we can build.
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mkdir llvmpath/"build" do
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system "cmake", "-G", "Unix Makefiles", "..", *(std_cmake_args + args)
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system "cmake", "--build", "."
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system "cmake", "--build", ".", "--target", "install"
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end
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if OS.mac?
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# Install versioned symlink, or else `llvm-config` doesn't work properly
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lib.install_symlink "libLLVM.dylib" => "libLLVM-#{version.major}.dylib"
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# Install Xcode toolchain. See:
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# https://github.com/llvm/llvm-project/blob/main/llvm/tools/xcode-toolchain/CMakeLists.txt
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# We do this manually in order to avoid:
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# 1. installing duplicates of files in the prefix
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# 2. requiring an existing Xcode installation
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xctoolchain = prefix/"Toolchains/LLVM#{version}.xctoolchain"
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xcode_version = MacOS::Xcode.installed? ? MacOS::Xcode.version : Version.new(MacOS::Xcode.latest_version)
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compat_version = (xcode_version < 8) ? "1" : "2"
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system "/usr/libexec/PlistBuddy", "-c", "Add:CFBundleIdentifier string org.llvm.#{version}", "Info.plist"
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system "/usr/libexec/PlistBuddy", "-c", "Add:CompatibilityVersion integer #{compat_version}", "Info.plist"
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xctoolchain.install "Info.plist"
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(xctoolchain/"usr").install_symlink [bin, include, lib, libexec, share]
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end
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# Install LLVM Python bindings
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# Clang Python bindings are installed by CMake
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(lib/site_packages).install llvmpath/"bindings/python/llvm"
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# Create symlinks so that the Python bindings can be used with alternative Python versions
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python_versions.each do |py_ver|
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next if py_ver == Language::Python.major_minor_version(python3).to_s
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(lib/"python#{py_ver}/site-packages").install_symlink (lib/site_packages).children
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end
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# Install Vim plugins
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%w[ftdetect ftplugin indent syntax].each do |dir|
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(share/"vim/vimfiles"/dir).install Pathname.glob("*/utils/vim/#{dir}/*.vim")
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end
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# Install Emacs modes
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elisp.install llvmpath.glob("utils/emacs/*.el") + share.glob("clang/*.el")
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end
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def caveats
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on_macos do
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<<~EOS
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To use the bundled libc++ please add the following LDFLAGS:
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LDFLAGS="-L#{opt_lib}/c++ -Wl,-rpath,#{opt_lib}/c++"
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EOS
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end
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end
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test do
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llvm_version = Version.new(Utils.safe_popen_read(bin/"llvm-config", "--version").strip)
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soversion = llvm_version.major.to_s
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assert_equal version, llvm_version
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assert_equal prefix.to_s, shell_output("#{bin}/llvm-config --prefix").chomp
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assert_equal "-lLLVM-#{soversion}", shell_output("#{bin}/llvm-config --libs").chomp
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assert_equal (lib/shared_library("libLLVM-#{soversion}")).to_s,
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shell_output("#{bin}/llvm-config --libfiles").chomp
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(testpath/"omptest.c").write <<~EOS
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#include <stdlib.h>
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#include <stdio.h>
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#include <omp.h>
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int main() {
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#pragma omp parallel num_threads(4)
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{
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printf("Hello from thread %d, nthreads %d\\n", omp_get_thread_num(), omp_get_num_threads());
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}
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return EXIT_SUCCESS;
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}
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EOS
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system "#{bin}/clang", "-L#{lib}", "-fopenmp", "-nobuiltininc",
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"-I#{lib}/clang/#{llvm_version.major_minor_patch}/include",
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"omptest.c", "-o", "omptest"
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testresult = shell_output("./omptest")
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sorted_testresult = testresult.split("\n").sort.join("\n")
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expected_result = <<~EOS
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Hello from thread 0, nthreads 4
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Hello from thread 1, nthreads 4
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Hello from thread 2, nthreads 4
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Hello from thread 3, nthreads 4
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EOS
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assert_equal expected_result.strip, sorted_testresult.strip
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(testpath/"test.c").write <<~EOS
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#include <stdio.h>
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int main()
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{
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printf("Hello World!\\n");
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return 0;
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}
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EOS
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(testpath/"test.cpp").write <<~EOS
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#include <iostream>
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int main()
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{
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std::cout << "Hello World!" << std::endl;
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return 0;
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}
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EOS
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# Testing default toolchain and SDK location.
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system "#{bin}/clang++", "-v",
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"-std=c++11", "test.cpp", "-o", "test++"
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assert_includes MachO::Tools.dylibs("test++"), "/usr/lib/libc++.1.dylib" if OS.mac?
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assert_equal "Hello World!", shell_output("./test++").chomp
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system "#{bin}/clang", "-v", "test.c", "-o", "test"
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assert_equal "Hello World!", shell_output("./test").chomp
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# Testing Command Line Tools
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if MacOS::CLT.installed?
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toolchain_path = "/Library/Developer/CommandLineTools"
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system "#{bin}/clang++", "-v",
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"-isysroot", MacOS::CLT.sdk_path,
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"-isystem", "#{toolchain_path}/usr/include/c++/v1",
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"-isystem", "#{toolchain_path}/usr/include",
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"-isystem", "#{MacOS::CLT.sdk_path}/usr/include",
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"-std=c++11", "test.cpp", "-o", "testCLT++"
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assert_includes MachO::Tools.dylibs("testCLT++"), "/usr/lib/libc++.1.dylib"
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assert_equal "Hello World!", shell_output("./testCLT++").chomp
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system "#{bin}/clang", "-v", "test.c", "-o", "testCLT"
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assert_equal "Hello World!", shell_output("./testCLT").chomp
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end
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# Testing Xcode
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if MacOS::Xcode.installed?
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system "#{bin}/clang++", "-v",
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"-isysroot", MacOS::Xcode.sdk_path,
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"-isystem", "#{MacOS::Xcode.toolchain_path}/usr/include/c++/v1",
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"-isystem", "#{MacOS::Xcode.toolchain_path}/usr/include",
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"-isystem", "#{MacOS::Xcode.sdk_path}/usr/include",
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"-std=c++11", "test.cpp", "-o", "testXC++"
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assert_includes MachO::Tools.dylibs("testXC++"), "/usr/lib/libc++.1.dylib"
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assert_equal "Hello World!", shell_output("./testXC++").chomp
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system "#{bin}/clang", "-v",
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"-isysroot", MacOS.sdk_path,
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"test.c", "-o", "testXC"
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assert_equal "Hello World!", shell_output("./testXC").chomp
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end
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# link against installed libc++
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# related to https://github.com/Homebrew/legacy-homebrew/issues/47149
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cxx_libdir = opt_lib
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cxx_libdir /= "c++" if OS.mac?
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system "#{bin}/clang++", "-v",
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"-isystem", "#{opt_include}/c++/v1",
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"-std=c++11", "-stdlib=libc++", "test.cpp", "-o", "testlibc++",
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"-rtlib=compiler-rt", "-L#{cxx_libdir}", "-Wl,-rpath,#{cxx_libdir}"
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assert_includes (testpath/"testlibc++").dynamically_linked_libraries,
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(cxx_libdir/shared_library("libc++", "1")).to_s
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(testpath/"testlibc++").dynamically_linked_libraries.each do |lib|
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refute_match(/libstdc\+\+/, lib)
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refute_match(/libgcc/, lib)
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refute_match(/libatomic/, lib)
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end
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assert_equal "Hello World!", shell_output("./testlibc++").chomp
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if OS.linux?
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# Link installed libc++, libc++abi, and libunwind archives both into
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# a position independent executable (PIE), as well as into a fully
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# position independent (PIC) DSO for things like plugins that export
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# a C-only API but internally use C++.
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#
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# FIXME: It'd be nice to be able to use flags like `-static-libstdc++`
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# together with `-stdlib=libc++` (the latter one we need anyways for
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# headers) to achieve this but those flags don't set up the correct
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# search paths or handle all of the libraries needed by `libc++` when
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# linking statically.
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system "#{bin}/clang++", "-v", "-o", "test_pie_runtimes",
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"-pie", "-fPIC", "test.cpp", "-L#{opt_lib}",
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"-stdlib=libc++", "-rtlib=compiler-rt",
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"-static-libstdc++", "-lpthread", "-ldl"
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assert_equal "Hello World!", shell_output("./test_pie_runtimes").chomp
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(testpath/"test_pie_runtimes").dynamically_linked_libraries.each do |lib|
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refute_match(/lib(std)?c\+\+/, lib)
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refute_match(/libgcc/, lib)
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refute_match(/libatomic/, lib)
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refute_match(/libunwind/, lib)
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end
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(testpath/"test_plugin.cpp").write <<~EOS
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#include <iostream>
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__attribute__((visibility("default")))
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extern "C" void run_plugin() {
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std::cout << "Hello Plugin World!" << std::endl;
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}
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EOS
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(testpath/"test_plugin_main.c").write <<~EOS
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extern void run_plugin();
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int main() {
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run_plugin();
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}
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EOS
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system "#{bin}/clang++", "-v", "-o", "test_plugin.so",
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"-shared", "-fPIC", "test_plugin.cpp", "-L#{opt_lib}",
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"-stdlib=libc++", "-rtlib=compiler-rt",
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"-static-libstdc++", "-lpthread", "-ldl"
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system "#{bin}/clang", "-v",
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"test_plugin_main.c", "-o", "test_plugin_libc++",
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"test_plugin.so", "-Wl,-rpath=#{testpath}", "-rtlib=compiler-rt"
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assert_equal "Hello Plugin World!", shell_output("./test_plugin_libc++").chomp
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(testpath/"test_plugin.so").dynamically_linked_libraries.each do |lib|
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refute_match(/lib(std)?c\+\+/, lib)
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refute_match(/libgcc/, lib)
|
|
refute_match(/libatomic/, lib)
|
|
refute_match(/libunwind/, lib)
|
|
end
|
|
end
|
|
|
|
# Testing mlir
|
|
(testpath/"test.mlir").write <<~EOS
|
|
func @bad_branch() {
|
|
br ^missing // expected-error {{reference to an undefined block}}
|
|
}
|
|
EOS
|
|
system "#{bin}/mlir-opt", "--verify-diagnostics", "test.mlir"
|
|
|
|
(testpath/"scanbuildtest.cpp").write <<~EOS
|
|
#include <iostream>
|
|
int main() {
|
|
int *i = new int;
|
|
*i = 1;
|
|
delete i;
|
|
std::cout << *i << std::endl;
|
|
return 0;
|
|
}
|
|
EOS
|
|
assert_includes shell_output("#{bin}/scan-build make scanbuildtest 2>&1"),
|
|
"warning: Use of memory after it is freed"
|
|
|
|
(testpath/"clangformattest.c").write <<~EOS
|
|
int main() {
|
|
printf("Hello world!"); }
|
|
EOS
|
|
assert_equal "int main() { printf(\"Hello world!\"); }\n",
|
|
shell_output("#{bin}/clang-format -style=google clangformattest.c")
|
|
|
|
# This will fail if the clang bindings cannot find `libclang`.
|
|
with_env(PYTHONPATH: prefix/Language::Python.site_packages("python3")) do
|
|
system "python3", "-c", <<~EOS
|
|
from clang import cindex
|
|
cindex.Config().get_cindex_library()
|
|
EOS
|
|
end
|
|
|
|
# Ensure LLVM did not regress output of `llvm-config --system-libs` which for a time
|
|
# was known to output incorrect linker flags; e.g., `-llibxml2.tbd` instead of `-lxml2`.
|
|
# On the other hand, note that a fully qualified path to `dylib` or `tbd` is OK, e.g.,
|
|
# `/usr/local/lib/libxml2.tbd` or `/usr/local/lib/libxml2.dylib`.
|
|
shell_output("#{bin}/llvm-config --system-libs").chomp.strip.split.each do |lib|
|
|
if lib.start_with?("-l")
|
|
assert !lib.end_with?(".tbd"), "expected abs path when lib reported as .tbd"
|
|
assert !lib.end_with?(".dylib"), "expected abs path when lib reported as .dylib"
|
|
else
|
|
p = Pathname.new(lib)
|
|
if p.extname == ".tbd" || p.extname == ".dylib"
|
|
assert p.absolute?, "expected abs path when lib reported as .tbd or .dylib"
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|