1 #!/usr/bin/env python 2 # 3 # Copyright 2016 Google Inc. 4 # 5 # Use of this source code is governed by a BSD-style license that can be 6 # found in the LICENSE file. 7 8 9 """Create a Clang toolchain for Linux hosts.""" 10 11 12 import argparse 13 import os 14 import subprocess 15 import tempfile 16 17 REPO = "https://llvm.googlesource.com/" 18 BRANCH = "release_70" 19 20 def create_asset(target_dir): 21 # CMake will sometimes barf if we pass it a relative path. 22 target_dir = os.path.abspath(target_dir) 23 24 # Build Clang, lld, compiler-rt (sanitizer support) and libc++. 25 os.chdir(tempfile.mkdtemp()) 26 subprocess.check_call(["git", "clone", "--depth", "1", "-b", 27 BRANCH, REPO + "llvm"]) 28 os.chdir("llvm/tools") 29 subprocess.check_call(["git", "clone", "--depth", "1", "-b", 30 BRANCH, REPO + "clang"]) 31 subprocess.check_call(["git", "clone", "--depth", "1", "-b", 32 BRANCH, REPO + "lld"]) 33 os.chdir("clang/tools") 34 subprocess.check_call(["git", "clone", "--depth", "1", "-b", 35 BRANCH, REPO + "clang-tools-extra", "extra"]) 36 37 os.chdir("../../../projects") 38 subprocess.check_call(["git", "clone", "--depth", "1", "-b", 39 BRANCH, REPO + "compiler-rt"]) 40 subprocess.check_call(["git", "clone", "--depth", "1", "-b", 41 BRANCH, REPO + "libcxx"]) 42 subprocess.check_call(["git", "clone", "--depth", "1", "-b", 43 BRANCH, REPO + "libcxxabi"]) 44 os.chdir("..") 45 os.mkdir("out") 46 os.chdir("out") 47 subprocess.check_call(["cmake", "..", "-G", "Ninja", 48 "-DCMAKE_BUILD_TYPE=MinSizeRel", 49 "-DCMAKE_INSTALL_PREFIX=" + target_dir, 50 "-DLLVM_INSTALL_TOOLCHAIN_ONLY=ON", 51 "-DLLVM_ENABLE_TERMINFO=OFF"]) 52 subprocess.check_call(["ninja", "install"]) 53 54 # Copy a couple extra files we need. 55 subprocess.check_call(["cp", "bin/llvm-symbolizer", target_dir + "/bin"]) 56 subprocess.check_call(["cp", "bin/llvm-profdata", target_dir + "/bin"]) 57 subprocess.check_call(["cp", "bin/llvm-cov", target_dir + "/bin"]) 58 libstdcpp = subprocess.check_output(["c++", 59 "-print-file-name=libstdc++.so.6"]) 60 subprocess.check_call(["cp", libstdcpp.strip(), target_dir + "/lib"]) 61 62 # Finally, build libc++ for MSAN bots using the Clang we just built. 63 os.mkdir("../msan_out") 64 os.chdir("../msan_out") 65 subprocess.check_call(["cmake", "..", "-G", "Ninja", 66 "-DCMAKE_BUILD_TYPE=MinSizeRel", 67 "-DCMAKE_C_COMPILER=" + target_dir + "/bin/clang", 68 "-DCMAKE_CXX_COMPILER=" + target_dir + "/bin/clang++", 69 "-DLLVM_USE_SANITIZER=MemoryWithOrigins"]) 70 subprocess.check_call(["ninja", "cxx"]) 71 subprocess.check_call(["cp", "-r", "lib", target_dir + "/msan"]) 72 73 74 def main(): 75 parser = argparse.ArgumentParser() 76 parser.add_argument('--target_dir', '-t', required=True) 77 args = parser.parse_args() 78 create_asset(args.target_dir) 79 80 81 if __name__ == '__main__': 82 main() 83
