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homebrew-core/Formula/llvm.rb

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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
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