class CodesignRequirement < Requirement fatal true satisfy(:build_env => false) do FileUtils.mktemp do FileUtils.cp "/usr/bin/false", "llvm_check" quiet_system "/usr/bin/codesign", "-f", "-s", "lldb_codesign", "--dryrun", "llvm_check" end end def message <<~EOS lldb_codesign identity must be available to build with LLDB. See: https://llvm.org/svn/llvm-project/lldb/trunk/docs/code-signing.txt EOS end end class Llvm < Formula desc "Next-gen compiler infrastructure" homepage "https://llvm.org/" stable do url "https://releases.llvm.org/6.0.0/llvm-6.0.0.src.tar.xz" sha256 "1ff53c915b4e761ef400b803f07261ade637b0c269d99569f18040f3dcee4408" resource "clang" do url "https://releases.llvm.org/6.0.0/cfe-6.0.0.src.tar.xz" sha256 "e07d6dd8d9ef196cfc8e8bb131cbd6a2ed0b1caf1715f9d05b0f0eeaddb6df32" end resource "clang-extra-tools" do url "https://releases.llvm.org/6.0.0/clang-tools-extra-6.0.0.src.tar.xz" sha256 "053b424a4cd34c9335d8918734dd802a8da612d13a26bbb88fcdf524b2d989d2" end resource "compiler-rt" do url "https://releases.llvm.org/6.0.0/compiler-rt-6.0.0.src.tar.xz" sha256 "d0cc1342cf57e9a8d52f5498da47a3b28d24ac0d39cbc92308781b3ee0cea79a" end # Only required to build & run Compiler-RT tests on macOS, optional otherwise. # https://clang.llvm.org/get_started.html resource "libcxx" do url "https://releases.llvm.org/6.0.0/libcxx-6.0.0.src.tar.xz" sha256 "70931a87bde9d358af6cb7869e7535ec6b015f7e6df64def6d2ecdd954040dd9" end resource "libunwind" do url "https://releases.llvm.org/6.0.0/libunwind-6.0.0.src.tar.xz" sha256 "256c4ed971191bde42208386c8d39e5143fa4afd098e03bd2c140c878c63f1d6" end resource "lld" do url "https://releases.llvm.org/6.0.0/lld-6.0.0.src.tar.xz" sha256 "6b8c4a833cf30230c0213d78dbac01af21387b298225de90ab56032ca79c0e0b" end resource "lldb" do url "https://releases.llvm.org/6.0.0/lldb-6.0.0.src.tar.xz" sha256 "46f54c1d7adcd047d87c0179f7b6fa751614f339f4f87e60abceaa45f414d454" end resource "openmp" do url "https://releases.llvm.org/6.0.0/openmp-6.0.0.src.tar.xz" sha256 "7c0e050d5f7da3b057579fb3ea79ed7dc657c765011b402eb5bbe5663a7c38fc" end resource "polly" do url "https://releases.llvm.org/6.0.0/polly-6.0.0.src.tar.xz" sha256 "47e493a799dca35bc68ca2ceaeed27c5ca09b12241f87f7220b5f5882194f59c" end end bottle do cellar :any sha256 "6e8c461f99e8b2725bb9c34d7fc548490f1e74f162f75f3670e0bd759dcbd473" => :high_sierra sha256 "3603e0a48860d079c9cdf32c6f65f87758bbfca4ab9aa6e2eb8b4d47a7751688" => :sierra sha256 "2ce6aed36aab360b9ec09c094727c76c6620bcf201802f5d5d59035c7e6c80f2" => :el_capitan end head do url "https://llvm.org/git/llvm.git" resource "clang" do url "https://llvm.org/git/clang.git" end resource "clang-extra-tools" do url "https://llvm.org/git/clang-tools-extra.git" end resource "compiler-rt" do url "https://llvm.org/git/compiler-rt.git" end resource "libcxx" do url "https://llvm.org/git/libcxx.git" end resource "libunwind" do url "https://llvm.org/git/libunwind.git" end resource "lld" do url "https://llvm.org/git/lld.git" end resource "lldb" do url "https://llvm.org/git/lldb.git" end resource "openmp" do url "https://llvm.org/git/openmp.git" end resource "polly" do url "https://llvm.org/git/polly.git" end end keg_only :provided_by_macos option "without-compiler-rt", "Do not build Clang runtime support libraries for code sanitizers, builtins, and profiling" option "without-libcxx", "Do not build libc++ standard library" option "with-toolchain", "Build with Toolchain to facilitate overriding system compiler" option "with-lldb", "Build LLDB debugger" option "with-python@2", "Build bindings against Homebrew's Python 2" option "with-shared-libs", "Build shared instead of static libraries" option "without-libffi", "Do not use libffi to call external functions" option "with-polly-gpgpu", "Enable Polly GPGPU" option "without-rtti", "Disable RTTI (and exception handling)" deprecated_option "with-python" => "with-python@2" # https://llvm.org/docs/GettingStarted.html#requirement depends_on "libffi" => :recommended # for the 'dot' tool (lldb) depends_on "graphviz" => :optional depends_on "ocaml" => :optional if build.with? "ocaml" depends_on "opam" => :build depends_on "pkg-config" => :build end if MacOS.version <= :snow_leopard depends_on "python@2" else depends_on "python@2" => :optional end depends_on "cmake" => :build if build.with? "lldb" depends_on "swig" if MacOS.version >= :lion depends_on CodesignRequirement end # According to the official llvm readme, GCC 4.7+ is required fails_with :gcc_4_0 fails_with :gcc ("4.3".."4.6").each do |n| fails_with :gcc => n end def build_libcxx? build.with?("libcxx") || !MacOS::CLT.installed? end def install # Apple's libstdc++ is too old to build LLVM ENV.libcxx if ENV.compiler == :clang if build.with? "python@2" ENV.prepend_path "PATH", Formula["python@2"].opt_libexec/"bin" end (buildpath/"tools/clang").install resource("clang") (buildpath/"tools/clang/tools/extra").install resource("clang-extra-tools") (buildpath/"projects/openmp").install resource("openmp") (buildpath/"projects/libcxx").install resource("libcxx") if build_libcxx? (buildpath/"projects/libunwind").install resource("libunwind") (buildpath/"tools/lld").install resource("lld") (buildpath/"tools/polly").install resource("polly") if build.with? "lldb" if build.with? "python@2" pyhome = `python-config --prefix`.chomp ENV["PYTHONHOME"] = pyhome pylib = "#{pyhome}/lib/libpython2.7.dylib" pyinclude = "#{pyhome}/include/python2.7" end (buildpath/"tools/lldb").install resource("lldb") # Building lldb requires a code signing certificate. # The instructions provided by llvm creates this certificate in the # user's login keychain. Unfortunately, the login keychain is not in # the search path in a superenv build. The following three lines add # the login keychain to ~/Library/Preferences/com.apple.security.plist, # which adds it to the superenv keychain search path. mkdir_p "#{ENV["HOME"]}/Library/Preferences" username = ENV["USER"] system "security", "list-keychains", "-d", "user", "-s", "/Users/#{username}/Library/Keychains/login.keychain" end if build.with? "compiler-rt" (buildpath/"projects/compiler-rt").install resource("compiler-rt") # compiler-rt has some iOS simulator features that require i386 symbols # I'm assuming the rest of clang needs support too for 32-bit compilation # to work correctly, but if not, perhaps universal binaries could be # limited to compiler-rt. llvm makes this somewhat easier because compiler-rt # can almost be treated as an entirely different build from llvm. ENV.permit_arch_flags end args = %w[ -DLLVM_OPTIMIZED_TABLEGEN=ON -DLLVM_INCLUDE_DOCS=OFF -DLLVM_INSTALL_UTILS=ON -DWITH_POLLY=ON -DLINK_POLLY_INTO_TOOLS=ON -DLLVM_TARGETS_TO_BUILD=all ] args << "-DLIBOMP_ARCH=x86_64" args << "-DLLVM_BUILD_EXTERNAL_COMPILER_RT=ON" if build.with? "compiler-rt" args << "-DLLVM_CREATE_XCODE_TOOLCHAIN=ON" if build.with? "toolchain" args << "-DPOLLY_ENABLE_GPGPU_CODEGEN=ON" if build.with? "polly-gpgpu" if build.with? "rtti" args << "-DLLVM_ENABLE_RTTI=ON" args << "-DLLVM_ENABLE_EH=ON" end if build.with? "shared-libs" args << "-DBUILD_SHARED_LIBS=ON" args << "-DLIBOMP_ENABLE_SHARED=ON" else args << "-DLLVM_BUILD_LLVM_DYLIB=ON" end args << "-DLLVM_ENABLE_LIBCXX=ON" if build_libcxx? if build.with?("lldb") && build.with?("python@2") args << "-DLLDB_RELOCATABLE_PYTHON=ON" args << "-DPYTHON_LIBRARY=#{pylib}" args << "-DPYTHON_INCLUDE_DIR=#{pyinclude}" end if build.with? "libffi" args << "-DLLVM_ENABLE_FFI=ON" args << "-DFFI_INCLUDE_DIR=#{Formula["libffi"].opt_lib}/libffi-#{Formula["libffi"].version}/include" args << "-DFFI_LIBRARY_DIR=#{Formula["libffi"].opt_lib}" end mktemp do if build.with? "ocaml" args << "-DLLVM_OCAML_INSTALL_PATH=#{lib}/ocaml" ENV["OPAMYES"] = "1" ENV["OPAMROOT"] = Pathname.pwd/"opamroot" (Pathname.pwd/"opamroot").mkpath system "opam", "init", "--no-setup" system "opam", "config", "exec", "--", "opam", "install", "ocamlfind", "ctypes" system "opam", "config", "exec", "--", "cmake", "-G", "Unix Makefiles", buildpath, *(std_cmake_args + args) else system "cmake", "-G", "Unix Makefiles", buildpath, *(std_cmake_args + args) end system "make" system "make", "install" system "make", "install-xcode-toolchain" if build.with? "toolchain" end (share/"clang/tools").install Dir["tools/clang/tools/scan-{build,view}"] (share/"cmake").install "cmake/modules" inreplace "#{share}/clang/tools/scan-build/bin/scan-build", "$RealBin/bin/clang", "#{bin}/clang" bin.install_symlink share/"clang/tools/scan-build/bin/scan-build", share/"clang/tools/scan-view/bin/scan-view" man1.install_symlink share/"clang/tools/scan-build/man/scan-build.1" # install llvm python bindings (lib/"python2.7/site-packages").install buildpath/"bindings/python/llvm" (lib/"python2.7/site-packages").install buildpath/"tools/clang/bindings/python/clang" end def caveats if build_libcxx? <<~EOS To use the bundled libc++ please add the following LDFLAGS: LDFLAGS="-L#{opt_lib} -Wl,-rpath,#{opt_lib}" EOS end end test do assert_equal prefix.to_s, shell_output("#{bin}/llvm-config --prefix").chomp (testpath/"omptest.c").write <<~EOS #include <stdlib.h> #include <stdio.h> #include <omp.h> int main() { #pragma omp parallel num_threads(4) { printf("Hello from thread %d, nthreads %d\\n", omp_get_thread_num(), omp_get_num_threads()); } return EXIT_SUCCESS; } EOS system "#{bin}/clang", "-L#{lib}", "-fopenmp", "-nobuiltininc", "-I#{lib}/clang/#{version}/include", "omptest.c", "-o", "omptest" testresult = shell_output("./omptest") sorted_testresult = testresult.split("\n").sort.join("\n") expected_result = <<~EOS Hello from thread 0, nthreads 4 Hello from thread 1, nthreads 4 Hello from thread 2, nthreads 4 Hello from thread 3, nthreads 4 EOS assert_equal expected_result.strip, sorted_testresult.strip (testpath/"test.c").write <<~EOS #include <stdio.h> int main() { printf("Hello World!\\n"); return 0; } EOS (testpath/"test.cpp").write <<~EOS #include <iostream> int main() { std::cout << "Hello World!" << std::endl; return 0; } EOS # Testing Command Line Tools if MacOS::CLT.installed? libclangclt = Dir["/Library/Developer/CommandLineTools/usr/lib/clang/#{MacOS::CLT.version.to_i}*"].last { |f| File.directory? f } system "#{bin}/clang++", "-v", "-nostdinc", "-I/Library/Developer/CommandLineTools/usr/include/c++/v1", "-I#{libclangclt}/include", "-I/usr/include", # need it because /Library/.../usr/include/c++/v1/iosfwd refers to <wchar.h>, which CLT installs to /usr/include "test.cpp", "-o", "testCLT++" assert_includes MachO::Tools.dylibs("testCLT++"), "/usr/lib/libc++.1.dylib" assert_equal "Hello World!", shell_output("./testCLT++").chomp system "#{bin}/clang", "-v", "-nostdinc", "-I/usr/include", # this is where CLT installs stdio.h "test.c", "-o", "testCLT" assert_equal "Hello World!", shell_output("./testCLT").chomp end # Testing Xcode if MacOS::Xcode.installed? libclangxc = Dir["#{MacOS::Xcode.toolchain_path}/usr/lib/clang/#{DevelopmentTools.clang_version}*"].last { |f| File.directory? f } system "#{bin}/clang++", "-v", "-nostdinc", "-I#{MacOS::Xcode.toolchain_path}/usr/include/c++/v1", "-I#{libclangxc}/include", "-I#{MacOS.sdk_path}/usr/include", "test.cpp", "-o", "testXC++" assert_includes MachO::Tools.dylibs("testXC++"), "/usr/lib/libc++.1.dylib" assert_equal "Hello World!", shell_output("./testXC++").chomp system "#{bin}/clang", "-v", "-nostdinc", "-I#{MacOS.sdk_path}/usr/include", "test.c", "-o", "testXC" assert_equal "Hello World!", shell_output("./testXC").chomp end # link against installed libc++ # related to https://github.com/Homebrew/legacy-homebrew/issues/47149 if build_libcxx? system "#{bin}/clang++", "-v", "-nostdinc", "-std=c++11", "-stdlib=libc++", "-I#{MacOS::Xcode.toolchain_path}/usr/include/c++/v1", "-I#{libclangxc}/include", "-I#{MacOS.sdk_path}/usr/include", "-L#{lib}", "-Wl,-rpath,#{lib}", "test.cpp", "-o", "test" assert_includes MachO::Tools.dylibs("test"), "#{opt_lib}/libc++.1.dylib" assert_equal "Hello World!", shell_output("./test").chomp end end end