| #!/usr/bin/env python |
| # Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| """This script is used to download prebuilt clang binaries. |
| |
| It is also used by package.py to build the prebuilt clang binaries.""" |
| |
| import argparse |
| import distutils.spawn |
| import glob |
| import os |
| import pipes |
| import re |
| import shutil |
| import subprocess |
| import stat |
| import sys |
| import tarfile |
| import tempfile |
| import time |
| import urllib2 |
| import zipfile |
| |
| |
| # Do NOT CHANGE this if you don't know what you're doing -- see |
| # https://chromium.googlesource.com/chromium/src/+/master/docs/updating_clang.md |
| # Reverting problematic clang rolls is safe, though. |
| CLANG_REVISION = '350768' |
| |
| use_head_revision = bool(os.environ.get('LLVM_FORCE_HEAD_REVISION', '0') |
| in ('1', 'YES')) |
| if use_head_revision: |
| CLANG_REVISION = 'HEAD' |
| |
| # This is incremented when pushing a new build of Clang at the same revision. |
| CLANG_SUB_REVISION=2 |
| |
| PACKAGE_VERSION = "%s-%s" % (CLANG_REVISION, CLANG_SUB_REVISION) |
| |
| # Path constants. (All of these should be absolute paths.) |
| THIS_DIR = os.path.abspath(os.path.dirname(__file__)) |
| CHROMIUM_DIR = os.path.abspath(os.path.join(THIS_DIR, '..', '..', '..')) |
| GCLIENT_CONFIG = os.path.join(os.path.dirname(CHROMIUM_DIR), '.gclient') |
| THIRD_PARTY_DIR = os.path.join(CHROMIUM_DIR, 'third_party') |
| LLVM_DIR = os.path.join(THIRD_PARTY_DIR, 'llvm') |
| LLVM_BOOTSTRAP_DIR = os.path.join(THIRD_PARTY_DIR, 'llvm-bootstrap') |
| LLVM_BOOTSTRAP_INSTALL_DIR = os.path.join(THIRD_PARTY_DIR, |
| 'llvm-bootstrap-install') |
| CHROME_TOOLS_SHIM_DIR = os.path.join(LLVM_DIR, 'tools', 'chrometools') |
| LLVM_BUILD_DIR = os.path.join(CHROMIUM_DIR, 'third_party', 'llvm-build', |
| 'Release+Asserts') |
| THREADS_ENABLED_BUILD_DIR = os.path.join(LLVM_BUILD_DIR, 'threads_enabled') |
| COMPILER_RT_BUILD_DIR = os.path.join(LLVM_BUILD_DIR, 'compiler-rt') |
| CLANG_DIR = os.path.join(LLVM_DIR, 'tools', 'clang') |
| LLD_DIR = os.path.join(LLVM_DIR, 'tools', 'lld') |
| # compiler-rt is built as part of the regular LLVM build on Windows to get |
| # the 64-bit runtime, and out-of-tree elsewhere. |
| # TODO(thakis): Try to unify this. |
| if sys.platform == 'win32': |
| COMPILER_RT_DIR = os.path.join(LLVM_DIR, 'projects', 'compiler-rt') |
| else: |
| COMPILER_RT_DIR = os.path.join(LLVM_DIR, 'compiler-rt') |
| LIBCXX_DIR = os.path.join(LLVM_DIR, 'projects', 'libcxx') |
| LIBCXXABI_DIR = os.path.join(LLVM_DIR, 'projects', 'libcxxabi') |
| LLVM_BUILD_TOOLS_DIR = os.path.abspath( |
| os.path.join(LLVM_DIR, '..', 'llvm-build-tools')) |
| STAMP_FILE = os.path.normpath( |
| os.path.join(LLVM_DIR, '..', 'llvm-build', 'cr_build_revision')) |
| VERSION = '8.0.0' |
| ANDROID_NDK_DIR = os.path.join( |
| CHROMIUM_DIR, 'third_party', 'android_ndk') |
| FUCHSIA_SDK_DIR = os.path.join(CHROMIUM_DIR, 'third_party', 'fuchsia-sdk', |
| 'sdk') |
| |
| # URL for pre-built binaries. |
| CDS_URL = os.environ.get('CDS_CLANG_BUCKET_OVERRIDE', |
| 'https://commondatastorage.googleapis.com/chromium-browser-clang') |
| |
| LLVM_REPO_URL='https://llvm.org/svn/llvm-project' |
| if 'LLVM_REPO_URL' in os.environ: |
| LLVM_REPO_URL = os.environ['LLVM_REPO_URL'] |
| |
| |
| |
| def DownloadUrl(url, output_file): |
| """Download url into output_file.""" |
| CHUNK_SIZE = 4096 |
| TOTAL_DOTS = 10 |
| num_retries = 3 |
| retry_wait_s = 5 # Doubled at each retry. |
| |
| while True: |
| try: |
| sys.stdout.write('Downloading %s ' % url) |
| sys.stdout.flush() |
| response = urllib2.urlopen(url) |
| total_size = int(response.info().getheader('Content-Length').strip()) |
| bytes_done = 0 |
| dots_printed = 0 |
| while True: |
| chunk = response.read(CHUNK_SIZE) |
| if not chunk: |
| break |
| output_file.write(chunk) |
| bytes_done += len(chunk) |
| num_dots = TOTAL_DOTS * bytes_done / total_size |
| sys.stdout.write('.' * (num_dots - dots_printed)) |
| sys.stdout.flush() |
| dots_printed = num_dots |
| if bytes_done != total_size: |
| raise urllib2.URLError("only got %d of %d bytes" % |
| (bytes_done, total_size)) |
| print ' Done.' |
| return |
| except urllib2.URLError as e: |
| sys.stdout.write('\n') |
| print e |
| if num_retries == 0 or isinstance(e, urllib2.HTTPError) and e.code == 404: |
| raise e |
| num_retries -= 1 |
| print 'Retrying in %d s ...' % retry_wait_s |
| time.sleep(retry_wait_s) |
| retry_wait_s *= 2 |
| |
| |
| def EnsureDirExists(path): |
| if not os.path.exists(path): |
| os.makedirs(path) |
| |
| |
| def DownloadAndUnpack(url, output_dir, path_prefix=None): |
| """Download an archive from url and extract into output_dir. If path_prefix is |
| not None, only extract files whose paths within the archive start with |
| path_prefix.""" |
| with tempfile.TemporaryFile() as f: |
| DownloadUrl(url, f) |
| f.seek(0) |
| EnsureDirExists(output_dir) |
| if url.endswith('.zip'): |
| assert path_prefix is None |
| zipfile.ZipFile(f).extractall(path=output_dir) |
| else: |
| t = tarfile.open(mode='r:gz', fileobj=f) |
| members = None |
| if path_prefix is not None: |
| members = [m for m in t.getmembers() if m.name.startswith(path_prefix)] |
| t.extractall(path=output_dir, members=members) |
| |
| |
| def ReadStampFile(path=STAMP_FILE): |
| """Return the contents of the stamp file, or '' if it doesn't exist.""" |
| try: |
| with open(path, 'r') as f: |
| return f.read().rstrip() |
| except IOError: |
| return '' |
| |
| |
| def WriteStampFile(s, path=STAMP_FILE): |
| """Write s to the stamp file.""" |
| EnsureDirExists(os.path.dirname(path)) |
| with open(path, 'w') as f: |
| f.write(s) |
| f.write('\n') |
| |
| |
| def GetSvnRevision(svn_repo): |
| """Returns current revision of the svn repo at svn_repo.""" |
| svn_info = subprocess.check_output('svn info ' + svn_repo, shell=True) |
| m = re.search(r'Revision: (\d+)', svn_info) |
| return m.group(1) |
| |
| |
| def RmTree(dir): |
| """Delete dir.""" |
| def ChmodAndRetry(func, path, _): |
| # Subversion can leave read-only files around. |
| if not os.access(path, os.W_OK): |
| os.chmod(path, stat.S_IWUSR) |
| return func(path) |
| raise |
| |
| shutil.rmtree(dir, onerror=ChmodAndRetry) |
| |
| |
| def RmCmakeCache(dir): |
| """Delete CMake cache related files from dir.""" |
| for dirpath, dirs, files in os.walk(dir): |
| if 'CMakeCache.txt' in files: |
| os.remove(os.path.join(dirpath, 'CMakeCache.txt')) |
| if 'CMakeFiles' in dirs: |
| RmTree(os.path.join(dirpath, 'CMakeFiles')) |
| |
| |
| def RunCommand(command, msvc_arch=None, env=None, fail_hard=True): |
| """Run command and return success (True) or failure; or if fail_hard is |
| True, exit on failure. If msvc_arch is set, runs the command in a |
| shell with the msvc tools for that architecture.""" |
| |
| if msvc_arch and sys.platform == 'win32': |
| command = [os.path.join(GetWinSDKDir(), 'bin', 'SetEnv.cmd'), |
| "/" + msvc_arch, '&&'] + command |
| |
| # https://docs.python.org/2/library/subprocess.html: |
| # "On Unix with shell=True [...] if args is a sequence, the first item |
| # specifies the command string, and any additional items will be treated as |
| # additional arguments to the shell itself. That is to say, Popen does the |
| # equivalent of: |
| # Popen(['/bin/sh', '-c', args[0], args[1], ...])" |
| # |
| # We want to pass additional arguments to command[0], not to the shell, |
| # so manually join everything into a single string. |
| # Annoyingly, for "svn co url c:\path", pipes.quote() thinks that it should |
| # quote c:\path but svn can't handle quoted paths on Windows. Since on |
| # Windows follow-on args are passed to args[0] instead of the shell, don't |
| # do the single-string transformation there. |
| if sys.platform != 'win32': |
| command = ' '.join([pipes.quote(c) for c in command]) |
| print 'Running', command |
| if subprocess.call(command, env=env, shell=True) == 0: |
| return True |
| print 'Failed.' |
| if fail_hard: |
| sys.exit(1) |
| return False |
| |
| |
| def CopyFile(src, dst): |
| """Copy a file from src to dst.""" |
| print "Copying %s to %s" % (src, dst) |
| shutil.copy(src, dst) |
| |
| |
| def CopyDirectoryContents(src, dst): |
| """Copy the files from directory src to dst.""" |
| dst = os.path.realpath(dst) # realpath() in case dst ends in /.. |
| EnsureDirExists(dst) |
| for f in os.listdir(src): |
| CopyFile(os.path.join(src, f), dst) |
| |
| |
| def Checkout(name, url, dir): |
| """Checkout the SVN module at url into dir. Use name for the log message.""" |
| print "Checking out %s r%s into '%s'" % (name, CLANG_REVISION, dir) |
| |
| command = ['svn', 'checkout', '--force', url + '@' + CLANG_REVISION, dir] |
| if RunCommand(command, fail_hard=False): |
| return |
| |
| if os.path.isdir(dir): |
| print "Removing %s." % (dir) |
| RmTree(dir) |
| |
| print "Retrying." |
| RunCommand(command) |
| |
| |
| def CheckoutRepos(args): |
| if args.skip_checkout: |
| return |
| |
| Checkout('LLVM', LLVM_REPO_URL + '/llvm/trunk', LLVM_DIR) |
| Checkout('Clang', LLVM_REPO_URL + '/cfe/trunk', CLANG_DIR) |
| if True: |
| Checkout('LLD', LLVM_REPO_URL + '/lld/trunk', LLD_DIR) |
| elif os.path.exists(LLD_DIR): |
| # In case someone sends a tryjob that temporary adds lld to the checkout, |
| # make sure it's not around on future builds. |
| RmTree(LLD_DIR) |
| Checkout('compiler-rt', LLVM_REPO_URL + '/compiler-rt/trunk', COMPILER_RT_DIR) |
| if sys.platform == 'darwin': |
| # clang needs a libc++ checkout, else -stdlib=libc++ won't find includes |
| # (i.e. this is needed for bootstrap builds). |
| Checkout('libcxx', LLVM_REPO_URL + '/libcxx/trunk', LIBCXX_DIR) |
| # We used to check out libcxxabi on OS X; we no longer need that. |
| if os.path.exists(LIBCXXABI_DIR): |
| RmTree(LIBCXXABI_DIR) |
| |
| |
| def DeleteChromeToolsShim(): |
| OLD_SHIM_DIR = os.path.join(LLVM_DIR, 'tools', 'zzz-chrometools') |
| shutil.rmtree(OLD_SHIM_DIR, ignore_errors=True) |
| shutil.rmtree(CHROME_TOOLS_SHIM_DIR, ignore_errors=True) |
| |
| |
| def CreateChromeToolsShim(): |
| """Hooks the Chrome tools into the LLVM build. |
| |
| Several Chrome tools have dependencies on LLVM/Clang libraries. The LLVM build |
| detects implicit tools in the tools subdirectory, so this helper install a |
| shim CMakeLists.txt that forwards to the real directory for the Chrome tools. |
| |
| Note that the shim directory name intentionally has no - or _. The implicit |
| tool detection logic munges them in a weird way.""" |
| assert not any(i in os.path.basename(CHROME_TOOLS_SHIM_DIR) for i in '-_') |
| os.mkdir(CHROME_TOOLS_SHIM_DIR) |
| with file(os.path.join(CHROME_TOOLS_SHIM_DIR, 'CMakeLists.txt'), 'w') as f: |
| f.write('# Automatically generated by tools/clang/scripts/update.py. ' + |
| 'Do not edit.\n') |
| f.write('# Since tools/clang is located in another directory, use the \n') |
| f.write('# two arg version to specify where build artifacts go. CMake\n') |
| f.write('# disallows reuse of the same binary dir for multiple source\n') |
| f.write('# dirs, so the build artifacts need to go into a subdirectory.\n') |
| f.write('if (CHROMIUM_TOOLS_SRC)\n') |
| f.write(' add_subdirectory(${CHROMIUM_TOOLS_SRC} ' + |
| '${CMAKE_CURRENT_BINARY_DIR}/a)\n') |
| f.write('endif (CHROMIUM_TOOLS_SRC)\n') |
| |
| |
| def AddSvnToPathOnWin(): |
| """Download svn.exe and add it to PATH.""" |
| if sys.platform != 'win32': |
| return |
| svn_ver = 'svn-1.6.6-win' |
| svn_dir = os.path.join(LLVM_BUILD_TOOLS_DIR, svn_ver) |
| if not os.path.exists(svn_dir): |
| DownloadAndUnpack(CDS_URL + '/tools/%s.zip' % svn_ver, LLVM_BUILD_TOOLS_DIR) |
| os.environ['PATH'] = svn_dir + os.pathsep + os.environ.get('PATH', '') |
| |
| |
| def AddCMakeToPath(args): |
| """Download CMake and add it to PATH.""" |
| if args.use_system_cmake: |
| return |
| |
| if sys.platform == 'win32': |
| zip_name = 'cmake-3.12.1-win32-x86.zip' |
| dir_name = ['cmake-3.12.1-win32-x86', 'bin'] |
| elif sys.platform == 'darwin': |
| zip_name = 'cmake-3.12.1-Darwin-x86_64.tar.gz' |
| dir_name = ['cmake-3.12.1-Darwin-x86_64', 'CMake.app', 'Contents', 'bin'] |
| else: |
| zip_name = 'cmake-3.12.1-Linux-x86_64.tar.gz' |
| dir_name = ['cmake-3.12.1-Linux-x86_64', 'bin'] |
| |
| cmake_dir = os.path.join(LLVM_BUILD_TOOLS_DIR, *dir_name) |
| if not os.path.exists(cmake_dir): |
| DownloadAndUnpack(CDS_URL + '/tools/' + zip_name, LLVM_BUILD_TOOLS_DIR) |
| os.environ['PATH'] = cmake_dir + os.pathsep + os.environ.get('PATH', '') |
| |
| |
| def AddGnuWinToPath(): |
| """Download some GNU win tools and add them to PATH.""" |
| if sys.platform != 'win32': |
| return |
| |
| gnuwin_dir = os.path.join(LLVM_BUILD_TOOLS_DIR, 'gnuwin') |
| GNUWIN_VERSION = '9' |
| GNUWIN_STAMP = os.path.join(gnuwin_dir, 'stamp') |
| if ReadStampFile(GNUWIN_STAMP) == GNUWIN_VERSION: |
| print 'GNU Win tools already up to date.' |
| else: |
| zip_name = 'gnuwin-%s.zip' % GNUWIN_VERSION |
| DownloadAndUnpack(CDS_URL + '/tools/' + zip_name, LLVM_BUILD_TOOLS_DIR) |
| WriteStampFile(GNUWIN_VERSION, GNUWIN_STAMP) |
| |
| os.environ['PATH'] = gnuwin_dir + os.pathsep + os.environ.get('PATH', '') |
| |
| # find.exe, mv.exe and rm.exe are from MSYS (see crrev.com/389632). MSYS uses |
| # Cygwin under the hood, and initializing Cygwin has a race-condition when |
| # getting group and user data from the Active Directory is slow. To work |
| # around this, use a horrible hack telling it not to do that. |
| # See https://crbug.com/905289 |
| etc = os.path.join(gnuwin_dir, '..', '..', 'etc') |
| EnsureDirExists(etc) |
| with open(os.path.join(etc, 'nsswitch.conf'), 'w') as f: |
| f.write('passwd: files\n') |
| f.write('group: files\n') |
| |
| |
| win_sdk_dir = None |
| dia_dll = None |
| def GetWinSDKDir(): |
| """Get the location of the current SDK. Sets dia_dll as a side-effect.""" |
| global win_sdk_dir |
| global dia_dll |
| if win_sdk_dir: |
| return win_sdk_dir |
| |
| # Bump after VC updates. |
| DIA_DLL = { |
| '2013': 'msdia120.dll', |
| '2015': 'msdia140.dll', |
| '2017': 'msdia140.dll', |
| '2019': 'msdia140.dll', |
| } |
| |
| # Don't let vs_toolchain overwrite our environment. |
| environ_bak = os.environ |
| |
| sys.path.append(os.path.join(CHROMIUM_DIR, 'build')) |
| import vs_toolchain |
| win_sdk_dir = vs_toolchain.SetEnvironmentAndGetSDKDir() |
| msvs_version = vs_toolchain.GetVisualStudioVersion() |
| |
| if bool(int(os.environ.get('DEPOT_TOOLS_WIN_TOOLCHAIN', '1'))): |
| dia_path = os.path.join(win_sdk_dir, '..', 'DIA SDK', 'bin', 'amd64') |
| else: |
| if 'GYP_MSVS_OVERRIDE_PATH' not in os.environ: |
| vs_path = vs_toolchain.DetectVisualStudioPath() |
| else: |
| vs_path = os.environ['GYP_MSVS_OVERRIDE_PATH'] |
| dia_path = os.path.join(vs_path, 'DIA SDK', 'bin', 'amd64') |
| |
| dia_dll = os.path.join(dia_path, DIA_DLL[msvs_version]) |
| |
| os.environ = environ_bak |
| return win_sdk_dir |
| |
| |
| def CopyDiaDllTo(target_dir): |
| # This script always wants to use the 64-bit msdia*.dll. |
| GetWinSDKDir() |
| CopyFile(dia_dll, target_dir) |
| |
| |
| def VeryifyVersionOfBuiltClangMatchesVERSION(): |
| """Checks that `clang --version` outputs VERSION. If this fails, VERSION |
| in this file is out-of-date and needs to be updated (possibly in an |
| `if use_head_revision:` block in main() first).""" |
| clang = os.path.join(LLVM_BUILD_DIR, 'bin', 'clang') |
| if sys.platform == 'win32': |
| # TODO: Parse `clang-cl /?` output for built clang's version and check that |
| # to check the binary we're actually shipping? But clang-cl.exe is just |
| # a copy of clang.exe, so this does check the same thing. |
| clang += '.exe' |
| version_out = subprocess.check_output([clang, '--version']) |
| version_out = re.match(r'clang version ([0-9.]+)', version_out).group(1) |
| if version_out != VERSION: |
| print ('unexpected clang version %s (not %s), update VERSION in update.py' |
| % (version_out, VERSION)) |
| sys.exit(1) |
| |
| |
| def GetPlatformUrlPrefix(platform): |
| if platform == 'win32' or platform == 'cygwin': |
| return CDS_URL + '/Win/' |
| if platform == 'darwin': |
| return CDS_URL + '/Mac/' |
| assert platform.startswith('linux') |
| return CDS_URL + '/Linux_x64/' |
| |
| |
| def DownloadAndUnpackClangPackage(platform, runtimes_only=False): |
| cds_file = "clang-%s.tgz" % PACKAGE_VERSION |
| cds_full_url = GetPlatformUrlPrefix(platform) + cds_file |
| try: |
| path_prefix = None |
| if runtimes_only: |
| path_prefix = 'lib/clang/' + VERSION + '/lib/' |
| DownloadAndUnpack(cds_full_url, LLVM_BUILD_DIR, path_prefix) |
| except urllib2.URLError: |
| print 'Failed to download prebuilt clang %s' % cds_file |
| print 'Use --force-local-build if you want to build locally.' |
| print 'Exiting.' |
| sys.exit(1) |
| |
| |
| def UpdateClang(args): |
| # Read target_os from .gclient so we know which non-native runtimes we need. |
| # TODO(pcc): See if we can download just the runtimes instead of the entire |
| # clang package, and do that from DEPS instead of here. |
| target_os = [] |
| try: |
| env = {} |
| execfile(GCLIENT_CONFIG, env, env) |
| target_os = env.get('target_os', target_os) |
| except: |
| pass |
| |
| expected_stamp = ','.join([PACKAGE_VERSION] + target_os) |
| if ReadStampFile() == expected_stamp and not args.force_local_build: |
| return 0 |
| |
| # Reset the stamp file in case the build is unsuccessful. |
| WriteStampFile('') |
| |
| if not args.force_local_build: |
| if os.path.exists(LLVM_BUILD_DIR): |
| RmTree(LLVM_BUILD_DIR) |
| |
| DownloadAndUnpackClangPackage(sys.platform) |
| if 'win' in target_os: |
| DownloadAndUnpackClangPackage('win32', runtimes_only=True) |
| if sys.platform == 'win32': |
| CopyDiaDllTo(os.path.join(LLVM_BUILD_DIR, 'bin')) |
| WriteStampFile(expected_stamp) |
| return 0 |
| |
| if args.with_android and not os.path.exists(ANDROID_NDK_DIR): |
| print 'Android NDK not found at ' + ANDROID_NDK_DIR |
| print 'The Android NDK is needed to build a Clang whose -fsanitize=address' |
| print 'works on Android. See ' |
| print 'https://www.chromium.org/developers/how-tos/android-build-instructions' |
| print 'for how to install the NDK, or pass --without-android.' |
| return 1 |
| |
| if args.with_fuchsia and not os.path.exists(FUCHSIA_SDK_DIR): |
| print 'Fuchsia SDK not found at ' + FUCHSIA_SDK_DIR |
| print 'The Fuchsia SDK is needed to build libclang_rt for Fuchsia.' |
| print 'Install the Fuchsia SDK by adding fuchsia to the ' |
| print 'target_os section in your .gclient and running hooks, ' |
| print 'or pass --without-fuchsia.' |
| print 'https://chromium.googlesource.com/chromium/src/+/master/docs/fuchsia_build_instructions.md' |
| print 'for general Fuchsia build instructions.' |
| return 1 |
| |
| print 'Locally building Clang %s...' % PACKAGE_VERSION |
| |
| AddCMakeToPath(args) |
| AddGnuWinToPath() |
| |
| DeleteChromeToolsShim() |
| |
| CheckoutRepos(args) |
| |
| if args.skip_build: |
| return |
| |
| cc, cxx = None, None |
| libstdcpp = None |
| |
| cflags = [] |
| cxxflags = [] |
| ldflags = [] |
| |
| targets = 'AArch64;ARM;Mips;PowerPC;SystemZ;WebAssembly;X86' |
| base_cmake_args = ['-GNinja', |
| '-DCMAKE_BUILD_TYPE=Release', |
| '-DLLVM_ENABLE_ASSERTIONS=ON', |
| '-DLLVM_ENABLE_TERMINFO=OFF', |
| '-DLLVM_TARGETS_TO_BUILD=' + targets, |
| # Statically link MSVCRT to avoid DLL dependencies. |
| '-DLLVM_USE_CRT_RELEASE=MT', |
| '-DCLANG_PLUGIN_SUPPORT=OFF', |
| ] |
| |
| if sys.platform != 'win32': |
| # libxml2 is required by the Win manifest merging tool used in cross-builds. |
| base_cmake_args.append('-DLLVM_ENABLE_LIBXML2=FORCE_ON') |
| |
| if args.bootstrap: |
| print 'Building bootstrap compiler' |
| EnsureDirExists(LLVM_BOOTSTRAP_DIR) |
| os.chdir(LLVM_BOOTSTRAP_DIR) |
| bootstrap_args = base_cmake_args + [ |
| '-DLLVM_TARGETS_TO_BUILD=X86;ARM;AArch64', |
| '-DCMAKE_INSTALL_PREFIX=' + LLVM_BOOTSTRAP_INSTALL_DIR, |
| '-DCMAKE_C_FLAGS=' + ' '.join(cflags), |
| '-DCMAKE_CXX_FLAGS=' + ' '.join(cxxflags), |
| ] |
| if cc is not None: bootstrap_args.append('-DCMAKE_C_COMPILER=' + cc) |
| if cxx is not None: bootstrap_args.append('-DCMAKE_CXX_COMPILER=' + cxx) |
| RmCmakeCache('.') |
| RunCommand(['cmake'] + bootstrap_args + [LLVM_DIR], msvc_arch='x64') |
| RunCommand(['ninja'], msvc_arch='x64') |
| if args.run_tests: |
| if sys.platform == 'win32': |
| CopyDiaDllTo(os.path.join(LLVM_BOOTSTRAP_DIR, 'bin')) |
| RunCommand(['ninja', 'check-all'], msvc_arch='x64') |
| RunCommand(['ninja', 'install'], msvc_arch='x64') |
| |
| if sys.platform == 'win32': |
| cc = os.path.join(LLVM_BOOTSTRAP_INSTALL_DIR, 'bin', 'clang-cl.exe') |
| cxx = os.path.join(LLVM_BOOTSTRAP_INSTALL_DIR, 'bin', 'clang-cl.exe') |
| # CMake has a hard time with backslashes in compiler paths: |
| # https://stackoverflow.com/questions/13050827 |
| cc = cc.replace('\\', '/') |
| cxx = cxx.replace('\\', '/') |
| else: |
| cc = os.path.join(LLVM_BOOTSTRAP_INSTALL_DIR, 'bin', 'clang') |
| cxx = os.path.join(LLVM_BOOTSTRAP_INSTALL_DIR, 'bin', 'clang++') |
| |
| print 'Building final compiler' |
| |
| # LLVM uses C++11 starting in llvm 3.5. On Linux, this means libstdc++4.7+ is |
| # needed, on OS X it requires libc++. clang only automatically links to libc++ |
| # when targeting OS X 10.9+, so add stdlib=libc++ explicitly so clang can run |
| # on OS X versions as old as 10.7. |
| deployment_target = '' |
| |
| if sys.platform == 'darwin' and args.bootstrap: |
| # When building on 10.9, /usr/include usually doesn't exist, and while |
| # Xcode's clang automatically sets a sysroot, self-built clangs don't. |
| cflags = ['-isysroot', subprocess.check_output( |
| ['xcrun', '--show-sdk-path']).rstrip()] |
| cxxflags = ['-stdlib=libc++'] + cflags |
| ldflags += ['-stdlib=libc++'] |
| deployment_target = '10.7' |
| # Running libc++ tests takes a long time. Since it was only needed for |
| # the install step above, don't build it as part of the main build. |
| # This makes running package.py over 10% faster (30 min instead of 34 min) |
| RmTree(LIBCXX_DIR) |
| |
| |
| # If building at head, define a macro that plugins can use for #ifdefing |
| # out code that builds at head, but not at CLANG_REVISION or vice versa. |
| if use_head_revision: |
| cflags += ['-DLLVM_FORCE_HEAD_REVISION'] |
| cxxflags += ['-DLLVM_FORCE_HEAD_REVISION'] |
| |
| # Build PDBs for archival on Windows. Don't use RelWithDebInfo since it |
| # has different optimization defaults than Release. |
| # Also disable stack cookies (/GS-) for performance. |
| if sys.platform == 'win32': |
| cflags += ['/Zi', '/GS-'] |
| cxxflags += ['/Zi', '/GS-'] |
| ldflags += ['/DEBUG', '/OPT:REF', '/OPT:ICF'] |
| |
| deployment_env = None |
| if deployment_target: |
| deployment_env = os.environ.copy() |
| deployment_env['MACOSX_DEPLOYMENT_TARGET'] = deployment_target |
| |
| # Build lld and code coverage tools. This is done separately from the rest of |
| # the build because these tools require threading support. |
| tools_with_threading = [ 'lld', 'llvm-cov', 'llvm-profdata' ] |
| print 'Building the following tools with threading support: %s' % ( |
| str(tools_with_threading)) |
| |
| if os.path.exists(THREADS_ENABLED_BUILD_DIR): |
| RmTree(THREADS_ENABLED_BUILD_DIR) |
| EnsureDirExists(THREADS_ENABLED_BUILD_DIR) |
| os.chdir(THREADS_ENABLED_BUILD_DIR) |
| |
| threads_enabled_cmake_args = base_cmake_args + [ |
| '-DCMAKE_C_FLAGS=' + ' '.join(cflags), |
| '-DCMAKE_CXX_FLAGS=' + ' '.join(cxxflags), |
| '-DCMAKE_EXE_LINKER_FLAGS=' + ' '.join(ldflags), |
| '-DCMAKE_SHARED_LINKER_FLAGS=' + ' '.join(ldflags), |
| '-DCMAKE_MODULE_LINKER_FLAGS=' + ' '.join(ldflags)] |
| if cc is not None: |
| threads_enabled_cmake_args.append('-DCMAKE_C_COMPILER=' + cc) |
| if cxx is not None: |
| threads_enabled_cmake_args.append('-DCMAKE_CXX_COMPILER=' + cxx) |
| |
| if args.lto_lld: |
| # Build lld with LTO. That speeds up the linker by ~10%. |
| # We only use LTO for Linux now. |
| # |
| # The linker expects all archive members to have symbol tables, so the |
| # archiver needs to be able to create symbol tables for bitcode files. |
| # GNU ar and ranlib don't understand bitcode files, but llvm-ar and |
| # llvm-ranlib do, so use them. |
| ar = os.path.join(LLVM_BOOTSTRAP_INSTALL_DIR, 'bin', 'llvm-ar') |
| ranlib = os.path.join(LLVM_BOOTSTRAP_INSTALL_DIR, 'bin', 'llvm-ranlib') |
| threads_enabled_cmake_args += [ |
| '-DCMAKE_AR=' + ar, |
| '-DCMAKE_RANLIB=' + ranlib, |
| '-DLLVM_ENABLE_LTO=thin', |
| '-DLLVM_USE_LINKER=lld'] |
| |
| RmCmakeCache('.') |
| RunCommand(['cmake'] + threads_enabled_cmake_args + [LLVM_DIR], |
| msvc_arch='x64', env=deployment_env) |
| RunCommand(['ninja'] + tools_with_threading, msvc_arch='x64') |
| |
| # Build clang and other tools. |
| CreateChromeToolsShim() |
| |
| cmake_args = [] |
| # TODO(thakis): Unconditionally append this to base_cmake_args instead once |
| # compiler-rt can build with clang-cl on Windows (http://llvm.org/PR23698) |
| cc_args = base_cmake_args if sys.platform != 'win32' else cmake_args |
| if cc is not None: cc_args.append('-DCMAKE_C_COMPILER=' + cc) |
| if cxx is not None: cc_args.append('-DCMAKE_CXX_COMPILER=' + cxx) |
| default_tools = ['plugins', 'blink_gc_plugin', 'translation_unit'] |
| chrome_tools = list(set(default_tools + args.extra_tools)) |
| cmake_args += base_cmake_args + [ |
| '-DLLVM_ENABLE_THREADS=OFF', |
| '-DCMAKE_C_FLAGS=' + ' '.join(cflags), |
| '-DCMAKE_CXX_FLAGS=' + ' '.join(cxxflags), |
| '-DCMAKE_EXE_LINKER_FLAGS=' + ' '.join(ldflags), |
| '-DCMAKE_SHARED_LINKER_FLAGS=' + ' '.join(ldflags), |
| '-DCMAKE_MODULE_LINKER_FLAGS=' + ' '.join(ldflags), |
| '-DCMAKE_INSTALL_PREFIX=' + LLVM_BUILD_DIR, |
| '-DCHROMIUM_TOOLS_SRC=%s' % os.path.join(CHROMIUM_DIR, 'tools', 'clang'), |
| '-DCHROMIUM_TOOLS=%s' % ';'.join(chrome_tools)] |
| |
| EnsureDirExists(LLVM_BUILD_DIR) |
| os.chdir(LLVM_BUILD_DIR) |
| RmCmakeCache('.') |
| RunCommand(['cmake'] + cmake_args + [LLVM_DIR], |
| msvc_arch='x64', env=deployment_env) |
| RunCommand(['ninja'], msvc_arch='x64') |
| |
| # Copy in the threaded versions of lld and other tools. |
| if sys.platform == 'win32': |
| CopyFile(os.path.join(THREADS_ENABLED_BUILD_DIR, 'bin', 'lld-link.exe'), |
| os.path.join(LLVM_BUILD_DIR, 'bin')) |
| CopyFile(os.path.join(THREADS_ENABLED_BUILD_DIR, 'bin', 'lld.pdb'), |
| os.path.join(LLVM_BUILD_DIR, 'bin')) |
| else: |
| for tool in tools_with_threading: |
| CopyFile(os.path.join(THREADS_ENABLED_BUILD_DIR, 'bin', tool), |
| os.path.join(LLVM_BUILD_DIR, 'bin')) |
| |
| if chrome_tools: |
| # If any Chromium tools were built, install those now. |
| RunCommand(['ninja', 'cr-install'], msvc_arch='x64') |
| |
| VeryifyVersionOfBuiltClangMatchesVERSION() |
| |
| # Do an out-of-tree build of compiler-rt. |
| # On Windows, this is used to get the 32-bit ASan run-time. |
| # TODO(hans): Remove once the regular build above produces this. |
| # On Mac and Linux, this is used to get the regular 64-bit run-time. |
| # Do a clobbered build due to cmake changes. |
| if os.path.isdir(COMPILER_RT_BUILD_DIR): |
| RmTree(COMPILER_RT_BUILD_DIR) |
| os.makedirs(COMPILER_RT_BUILD_DIR) |
| os.chdir(COMPILER_RT_BUILD_DIR) |
| # TODO(thakis): Add this once compiler-rt can build with clang-cl (see |
| # above). |
| #if args.bootstrap and sys.platform == 'win32': |
| # The bootstrap compiler produces 64-bit binaries by default. |
| #cflags += ['-m32'] |
| #cxxflags += ['-m32'] |
| compiler_rt_args = base_cmake_args + [ |
| '-DLLVM_ENABLE_THREADS=OFF', |
| '-DCMAKE_C_FLAGS=' + ' '.join(cflags), |
| '-DCMAKE_CXX_FLAGS=' + ' '.join(cxxflags)] |
| if sys.platform == 'darwin': |
| compiler_rt_args += ['-DCOMPILER_RT_ENABLE_IOS=ON'] |
| if sys.platform != 'win32': |
| compiler_rt_args += ['-DLLVM_CONFIG_PATH=' + |
| os.path.join(LLVM_BUILD_DIR, 'bin', 'llvm-config'), |
| '-DSANITIZER_MIN_OSX_VERSION="10.7"'] |
| # compiler-rt is part of the llvm checkout on Windows but a stand-alone |
| # directory elsewhere, see the TODO above COMPILER_RT_DIR. |
| RmCmakeCache('.') |
| RunCommand(['cmake'] + compiler_rt_args + |
| [LLVM_DIR if sys.platform == 'win32' else COMPILER_RT_DIR], |
| msvc_arch='x86', env=deployment_env) |
| RunCommand(['ninja', 'compiler-rt'], msvc_arch='x86') |
| if sys.platform != 'win32': |
| RunCommand(['ninja', 'fuzzer']) |
| |
| # Copy select output to the main tree. |
| # TODO(hans): Make this (and the .gypi and .isolate files) version number |
| # independent. |
| if sys.platform == 'win32': |
| platform = 'windows' |
| elif sys.platform == 'darwin': |
| platform = 'darwin' |
| else: |
| assert sys.platform.startswith('linux') |
| platform = 'linux' |
| rt_lib_src_dir = os.path.join(COMPILER_RT_BUILD_DIR, 'lib', platform) |
| if sys.platform == 'win32': |
| # TODO(thakis): This too is due to compiler-rt being part of the checkout |
| # on Windows, see TODO above COMPILER_RT_DIR. |
| rt_lib_src_dir = os.path.join(COMPILER_RT_BUILD_DIR, 'lib', 'clang', |
| VERSION, 'lib', platform) |
| rt_lib_dst_dir = os.path.join(LLVM_BUILD_DIR, 'lib', 'clang', VERSION, 'lib', |
| platform) |
| # Blacklists: |
| CopyDirectoryContents(os.path.join(rt_lib_src_dir, '..', '..', 'share'), |
| os.path.join(rt_lib_dst_dir, '..', '..', 'share')) |
| # Headers: |
| if sys.platform != 'win32': |
| CopyDirectoryContents( |
| os.path.join(COMPILER_RT_BUILD_DIR, 'include/sanitizer'), |
| os.path.join(LLVM_BUILD_DIR, 'lib/clang', VERSION, 'include/sanitizer')) |
| # Static and dynamic libraries: |
| CopyDirectoryContents(rt_lib_src_dir, rt_lib_dst_dir) |
| if sys.platform == 'darwin': |
| for dylib in glob.glob(os.path.join(rt_lib_dst_dir, '*.dylib')): |
| # Fix LC_ID_DYLIB for the ASan dynamic libraries to be relative to |
| # @executable_path. |
| # TODO(glider): this is transitional. We'll need to fix the dylib |
| # name either in our build system, or in Clang. See also |
| # http://crbug.com/344836. |
| subprocess.call(['install_name_tool', '-id', |
| '@executable_path/' + os.path.basename(dylib), dylib]) |
| |
| if args.with_android: |
| make_toolchain = os.path.join( |
| ANDROID_NDK_DIR, 'build', 'tools', 'make_standalone_toolchain.py') |
| for target_arch in ['aarch64', 'arm', 'i686']: |
| # Make standalone Android toolchain for target_arch. |
| toolchain_dir = os.path.join( |
| LLVM_BUILD_DIR, 'android-toolchain-' + target_arch) |
| api_level = '21' if target_arch == 'aarch64' else '19' |
| RunCommand([ |
| make_toolchain, |
| '--api=' + api_level, |
| '--force', |
| '--install-dir=%s' % toolchain_dir, |
| '--stl=libc++', |
| '--arch=' + { |
| 'aarch64': 'arm64', |
| 'arm': 'arm', |
| 'i686': 'x86', |
| }[target_arch]]) |
| |
| # NDK r16 "helpfully" installs libc++ as libstdc++ "so the compiler will |
| # pick it up by default". Only these days, the compiler tries to find |
| # libc++ instead. See https://crbug.com/902270. |
| shutil.copy(os.path.join(toolchain_dir, 'sysroot/usr/lib/libstdc++.a'), |
| os.path.join(toolchain_dir, 'sysroot/usr/lib/libc++.a')) |
| shutil.copy(os.path.join(toolchain_dir, 'sysroot/usr/lib/libstdc++.so'), |
| os.path.join(toolchain_dir, 'sysroot/usr/lib/libc++.so')) |
| |
| # Build compiler-rt runtimes needed for Android in a separate build tree. |
| build_dir = os.path.join(LLVM_BUILD_DIR, 'android-' + target_arch) |
| if not os.path.exists(build_dir): |
| os.mkdir(os.path.join(build_dir)) |
| os.chdir(build_dir) |
| target_triple = target_arch |
| abi_libs = 'c++abi' |
| if target_arch == 'arm': |
| target_triple = 'armv7' |
| abi_libs += ';unwind' |
| target_triple += '-linux-android' + api_level |
| cflags = ['--target=%s' % target_triple, |
| '--sysroot=%s/sysroot' % toolchain_dir, |
| '-B%s' % toolchain_dir] |
| android_args = base_cmake_args + [ |
| '-DLLVM_ENABLE_THREADS=OFF', |
| '-DCMAKE_C_COMPILER=' + os.path.join(LLVM_BUILD_DIR, 'bin/clang'), |
| '-DCMAKE_CXX_COMPILER=' + os.path.join(LLVM_BUILD_DIR, 'bin/clang++'), |
| '-DLLVM_CONFIG_PATH=' + os.path.join(LLVM_BUILD_DIR, 'bin/llvm-config'), |
| '-DCMAKE_C_FLAGS=' + ' '.join(cflags), |
| '-DCMAKE_CXX_FLAGS=' + ' '.join(cflags), |
| '-DCMAKE_ASM_FLAGS=' + ' '.join(cflags), |
| '-DSANITIZER_CXX_ABI=none', |
| '-DSANITIZER_CXX_ABI_LIBRARY=' + abi_libs, |
| '-DCMAKE_SHARED_LINKER_FLAGS=-Wl,-u__cxa_demangle', |
| '-DANDROID=1'] |
| RmCmakeCache('.') |
| RunCommand(['cmake'] + android_args + [COMPILER_RT_DIR]) |
| |
| # We use ASan i686 build for fuzzing. |
| libs_want = ['lib/linux/libclang_rt.asan-{0}-android.so'] |
| if target_arch in ['aarch64', 'arm']: |
| libs_want += [ |
| 'lib/linux/libclang_rt.ubsan_standalone-{0}-android.so', |
| 'lib/linux/libclang_rt.profile-{0}-android.a', |
| ] |
| libs_want = [lib.format(target_arch) for lib in libs_want] |
| RunCommand(['ninja'] + libs_want) |
| |
| # And copy them into the main build tree. |
| for p in libs_want: |
| shutil.copy(p, rt_lib_dst_dir) |
| |
| if args.with_fuchsia: |
| # Fuchsia links against libclang_rt.builtins-<arch>.a instead of libgcc.a. |
| for target_arch in ['aarch64', 'x86_64']: |
| fuchsia_arch_name = {'aarch64': 'arm64', 'x86_64': 'x64'}[target_arch] |
| toolchain_dir = os.path.join( |
| FUCHSIA_SDK_DIR, 'arch', fuchsia_arch_name, 'sysroot') |
| # Build clang_rt runtime for Fuchsia in a separate build tree. |
| build_dir = os.path.join(LLVM_BUILD_DIR, 'fuchsia-' + target_arch) |
| if not os.path.exists(build_dir): |
| os.mkdir(os.path.join(build_dir)) |
| os.chdir(build_dir) |
| target_spec = target_arch + '-fuchsia' |
| # TODO(thakis): Might have to pass -B here once sysroot contains |
| # binaries (e.g. gas for arm64?) |
| fuchsia_args = base_cmake_args + [ |
| '-DLLVM_ENABLE_THREADS=OFF', |
| '-DCMAKE_C_COMPILER=' + os.path.join(LLVM_BUILD_DIR, 'bin/clang'), |
| '-DCMAKE_CXX_COMPILER=' + os.path.join(LLVM_BUILD_DIR, 'bin/clang++'), |
| '-DCMAKE_LINKER=' + os.path.join(LLVM_BUILD_DIR, 'bin/clang'), |
| '-DCMAKE_AR=' + os.path.join(LLVM_BUILD_DIR, 'bin/llvm-ar'), |
| '-DLLVM_CONFIG_PATH=' + os.path.join(LLVM_BUILD_DIR, 'bin/llvm-config'), |
| '-DCMAKE_SYSTEM_NAME=Fuchsia', |
| '-DCMAKE_C_COMPILER_TARGET=%s-fuchsia' % target_arch, |
| '-DCMAKE_ASM_COMPILER_TARGET=%s-fuchsia' % target_arch, |
| '-DCOMPILER_RT_DEFAULT_TARGET_ONLY=ON', |
| '-DCMAKE_SYSROOT=%s' % toolchain_dir, |
| # TODO(thakis|scottmg): Use PER_TARGET_RUNTIME_DIR for all platforms. |
| # https://crbug.com/882485. |
| '-DLLVM_ENABLE_PER_TARGET_RUNTIME_DIR=ON', |
| |
| # These are necessary because otherwise CMake tries to build an |
| # executable to test to see if the compiler is working, but in doing so, |
| # it links against the builtins.a that we're about to build. |
| '-DCMAKE_C_COMPILER_WORKS=ON', |
| '-DCMAKE_ASM_COMPILER_WORKS=ON', |
| ] |
| RmCmakeCache('.') |
| RunCommand(['cmake'] + |
| fuchsia_args + |
| [os.path.join(COMPILER_RT_DIR, 'lib', 'builtins')]) |
| builtins_a = 'libclang_rt.builtins.a' |
| RunCommand(['ninja', builtins_a]) |
| |
| # And copy it into the main build tree. |
| fuchsia_lib_dst_dir = os.path.join(LLVM_BUILD_DIR, 'lib', 'clang', |
| VERSION, target_spec, 'lib') |
| if not os.path.exists(fuchsia_lib_dst_dir): |
| os.makedirs(fuchsia_lib_dst_dir) |
| CopyFile(os.path.join(build_dir, target_spec, 'lib', builtins_a), |
| fuchsia_lib_dst_dir) |
| |
| # Run tests. |
| if args.run_tests or use_head_revision: |
| os.chdir(LLVM_BUILD_DIR) |
| RunCommand(['ninja', 'cr-check-all'], msvc_arch='x64') |
| if args.run_tests: |
| if sys.platform == 'win32': |
| CopyDiaDllTo(os.path.join(LLVM_BUILD_DIR, 'bin')) |
| os.chdir(LLVM_BUILD_DIR) |
| RunCommand(['ninja', 'check-all'], msvc_arch='x64') |
| |
| WriteStampFile(PACKAGE_VERSION) |
| print 'Clang update was successful.' |
| return 0 |
| |
| |
| def gn_arg(v): |
| if v == 'True': |
| return True |
| if v == 'False': |
| return False |
| raise argparse.ArgumentTypeError('Expected one of %r or %r' % ( |
| 'True', 'False')) |
| |
| |
| def main(): |
| parser = argparse.ArgumentParser(description='Build Clang.') |
| parser.add_argument('--bootstrap', action='store_true', |
| help='first build clang with CC, then with itself.') |
| parser.add_argument('--force-local-build', action='store_true', |
| help="don't try to download prebuild binaries") |
| parser.add_argument('--gcc-toolchain', help='set the version for which gcc ' |
| 'version be used for building; --gcc-toolchain=/opt/foo ' |
| 'picks /opt/foo/bin/gcc') |
| parser.add_argument('--lto-lld', action='store_true', |
| help='build lld with LTO') |
| parser.add_argument('--llvm-force-head-revision', action='store_true', |
| help=('use the revision in the repo when printing ' |
| 'the revision')) |
| parser.add_argument('--print-revision', action='store_true', |
| help='print current clang revision and exit.') |
| parser.add_argument('--print-clang-version', action='store_true', |
| help='print current clang version (e.g. x.y.z) and exit.') |
| parser.add_argument('--run-tests', action='store_true', |
| help='run tests after building; only for local builds') |
| parser.add_argument('--skip-build', action='store_true', |
| help='do not build anything') |
| parser.add_argument('--skip-checkout', action='store_true', |
| help='do not create or update any checkouts') |
| parser.add_argument('--extra-tools', nargs='*', default=[], |
| help='select additional chrome tools to build') |
| parser.add_argument('--use-system-cmake', action='store_true', |
| help='use the cmake from PATH instead of downloading ' |
| 'and using prebuilt cmake binaries') |
| parser.add_argument('--verify-version', |
| help='verify that clang has the passed-in version') |
| parser.add_argument('--with-android', type=gn_arg, nargs='?', const=True, |
| help='build the Android ASan runtime (linux only)', |
| default=sys.platform.startswith('linux')) |
| parser.add_argument('--without-android', action='store_false', |
| help='don\'t build Android ASan runtime (linux only)', |
| dest='with_android') |
| parser.add_argument('--without-fuchsia', action='store_false', |
| help='don\'t build Fuchsia clang_rt runtime (linux/mac)', |
| dest='with_fuchsia', |
| default=sys.platform in ('linux2', 'darwin')) |
| args = parser.parse_args() |
| |
| if args.lto_lld and not args.bootstrap: |
| print '--lto-lld requires --bootstrap' |
| return 1 |
| if args.lto_lld and not sys.platform.startswith('linux'): |
| print '--lto-lld is only effective on Linux. Ignoring the option.' |
| args.lto_lld = False |
| |
| # Get svn if we're going to use it to check the revision or do a local build. |
| if (use_head_revision or args.llvm_force_head_revision or |
| args.force_local_build): |
| AddSvnToPathOnWin() |
| |
| if use_head_revision: |
| # TODO(hans): Trunk version was updated; remove after the next roll. |
| global VERSION |
| VERSION = '8.0.0' |
| |
| if args.verify_version and args.verify_version != VERSION: |
| print 'VERSION is %s but --verify-version argument was %s, exiting.' % ( |
| VERSION, args.verify_version) |
| print 'clang_version in build/toolchain/toolchain.gni is likely outdated.' |
| return 1 |
| |
| global CLANG_REVISION, PACKAGE_VERSION |
| if args.print_revision: |
| if use_head_revision or args.llvm_force_head_revision: |
| print GetSvnRevision(LLVM_DIR) |
| else: |
| print PACKAGE_VERSION |
| return 0 |
| |
| if args.print_clang_version: |
| sys.stdout.write(VERSION) |
| return 0 |
| |
| # Don't buffer stdout, so that print statements are immediately flushed. |
| # Do this only after --print-revision has been handled, else we'll get |
| # an error message when this script is run from gn for some reason. |
| sys.stdout = os.fdopen(sys.stdout.fileno(), 'w', 0) |
| |
| if use_head_revision: |
| # Use a real revision number rather than HEAD to make sure that the stamp |
| # file logic works. |
| CLANG_REVISION = GetSvnRevision(LLVM_REPO_URL) |
| PACKAGE_VERSION = CLANG_REVISION + '-0' |
| |
| args.force_local_build = True |
| # Don't build fuchsia runtime on ToT bots at all. |
| args.with_fuchsia = False |
| |
| return UpdateClang(args) |
| |
| |
| if __name__ == '__main__': |
| sys.exit(main()) |