305 lines
11 KiB
Ruby
305 lines
11 KiB
Ruby
class Llvm < Formula
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desc "Next-gen compiler infrastructure"
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homepage "https://llvm.org/"
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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"
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head "https://github.com/llvm/llvm-project.git"
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stable do
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url "https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.1/llvm-10.0.1.src.tar.xz"
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sha256 "c5d8e30b57cbded7128d78e5e8dad811bff97a8d471896812f57fa99ee82cdf3"
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resource "clang" do
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url "https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.1/clang-10.0.1.src.tar.xz"
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sha256 "f99afc382b88e622c689b6d96cadfa6241ef55dca90e87fc170352e12ddb2b24"
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end
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resource "clang-tools-extra" do
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url "https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.1/clang-tools-extra-10.0.1.src.tar.xz"
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sha256 "d093782bcfcd0c3f496b67a5c2c997ab4b85816b62a7dd5b27026634ccf5c11a"
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end
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resource "compiler-rt" do
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url "https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.1/compiler-rt-10.0.1.src.tar.xz"
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sha256 "d90dc8e121ca0271f0fd3d639d135bfaa4b6ed41e67bd6eb77808f72629658fa"
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end
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resource "libcxx" do
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url "https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.1/libcxx-10.0.1.src.tar.xz"
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sha256 "def674535f22f83131353b3c382ccebfef4ba6a35c488bdb76f10b68b25be86c"
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end
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resource "libunwind" do
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url "https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.1/libunwind-10.0.1.src.tar.xz"
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sha256 "741903ec1ebff2253ff19d803629d88dc7612598758b6e48bea2da168de95e27"
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end
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resource "lld" do
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url "https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.1/lld-10.0.1.src.tar.xz"
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sha256 "591449e0aa623a6318d5ce2371860401653c48bb540982ccdd933992cb88df7a"
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end
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resource "lldb" do
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url "https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.1/lldb-10.0.1.src.tar.xz"
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sha256 "07abe87c25876aa306e73127330f5f37d270b6b082d50cc679e31b4fc02a3714"
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end
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resource "openmp" do
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url "https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.1/openmp-10.0.1.src.tar.xz"
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sha256 "d19f728c8e04fb1e94566c8d76aef50ec926cd2f95ef3bf1e0a5de4909b28b44"
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end
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resource "polly" do
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url "https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.1/polly-10.0.1.src.tar.xz"
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sha256 "d2fb0bb86b21db1f52402ba231da7c119c35c21dfb843c9496fe901f2d6aa25a"
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end
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end
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livecheck do
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url :homepage
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regex(/LLVM (\d+.\d+.\d+)/i)
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end
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bottle do
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cellar :any
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sha256 "e3ec9fda84756750ac0b5620ff34da04ba5035c8276af1bebfe76e012bb0b14a" => :catalina
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sha256 "bb8ede510e2a5664761281f1e7e6f2c01758229bdc49e19a9557ced5e4cb7717" => :mojave
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sha256 "d39ebc8d856f0b5ef3709625cfdd3dc02299d2648431852d50577d5d839fd6aa" => :high_sierra
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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? do
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reason "The bottle needs the Xcode CLT to be installed."
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satisfy { MacOS::CLT.installed? }
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end
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keg_only :provided_by_macos
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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@3.8" => :build
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depends_on "libffi"
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uses_from_macos "libedit"
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uses_from_macos "libxml2"
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uses_from_macos "ncurses"
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uses_from_macos "zlib"
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def install
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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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lldb
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polly
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]
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# OpenMP currently fails to build on ARM
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# https://github.com/Homebrew/brew/issues/7857#issuecomment-661484670
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projects << "openmp" unless Hardware::CPU.arm?
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runtimes = %w[
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compiler-rt
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libcxx
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libunwind
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]
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# Can likely be added to the base runtimes array when 11.0.0 is released.
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runtimes << "libcxxabi" if build.head?
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llvmpath = buildpath/"llvm"
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unless build.head?
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llvmpath.install buildpath.children - [buildpath/".brew_home"]
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(projects + runtimes).each { |p| resource(p).stage(buildpath/p) }
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end
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py_ver = "3.8"
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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_BUILD_LLVM_C_DYLIB=ON
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-DLLVM_ENABLE_EH=ON
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-DLLVM_ENABLE_FFI=ON
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-DLLVM_ENABLE_LIBCXX=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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-DFFI_INCLUDE_DIR=#{Formula["libffi"].opt_lib}/libffi-#{Formula["libffi"].version}/include
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-DFFI_LIBRARY_DIR=#{Formula["libffi"].opt_lib}
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-DLLVM_CREATE_XCODE_TOOLCHAIN=#{MacOS::Xcode.installed? ? "ON" : "OFF"}
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-DLLDB_USE_SYSTEM_DEBUGSERVER=ON
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-DLLDB_ENABLE_PYTHON=OFF
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-DLLDB_ENABLE_LUA=OFF
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-DLLDB_ENABLE_LZMA=OFF
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-DLIBOMP_INSTALL_ALIASES=OFF
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-DCLANG_PYTHON_BINDINGS_VERSIONS=#{py_ver}
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]
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sdk = MacOS.sdk_path_if_needed
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args << "-DDEFAULT_SYSROOT=#{sdk}" if sdk
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if MacOS.version == :mojave && MacOS::CLT.installed?
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# Mojave CLT linker via software update is older than Xcode.
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# Use it to retain compatibility.
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args << "-DCMAKE_LINKER=/Library/Developer/CommandLineTools/usr/bin/ld"
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end
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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 "make"
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system "make", "install"
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system "make", "install-xcode-toolchain" if MacOS::Xcode.installed?
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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/"python#{py_ver}/site-packages").install llvmpath/"bindings/python/llvm"
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# Install Emacs modes
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elisp.install Dir[llvmpath/"utils/emacs/*.el"] + Dir[share/"clang/*.el"]
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end
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def caveats
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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} -Wl,-rpath,#{opt_lib}"
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EOS
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end
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test do
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assert_equal prefix.to_s, shell_output("#{bin}/llvm-config --prefix").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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clean_version = version.to_s[/(\d+\.?)+/]
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system "#{bin}/clang", "-L#{lib}", "-fopenmp", "-nobuiltininc",
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"-I#{lib}/clang/#{clean_version}/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"
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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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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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"-L#{opt_lib}", "-Wl,-rpath,#{opt_lib}"
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assert_includes MachO::Tools.dylibs("testlibc++"), "#{opt_lib}/libc++.1.dylib"
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assert_equal "Hello World!", shell_output("./testlibc++").chomp
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(testpath/"scanbuildtest.cpp").write <<~EOS
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#include <iostream>
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int main() {
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int *i = new int;
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*i = 1;
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delete i;
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std::cout << *i << std::endl;
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return 0;
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}
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EOS
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assert_includes shell_output("#{bin}/scan-build clang++ scanbuildtest.cpp 2>&1"),
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"warning: Use of memory after it is freed"
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(testpath/"clangformattest.c").write <<~EOS
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int main() {
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printf("Hello world!"); }
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EOS
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assert_equal "int main() { printf(\"Hello world!\"); }\n",
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shell_output("#{bin}/clang-format -style=google clangformattest.c")
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end
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end
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