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#!/usr/bin/env python
# Copyright (c) 2015 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 will check out llvm and clang, and then package the results up
to a tgz file."""
import argparse
import fnmatch
import itertools
import os
import shutil
import subprocess
import sys
import tarfile
# Path constants.
THIS_DIR = os.path.dirname(__file__)
CHROMIUM_DIR = os.path.abspath(os.path.join(THIS_DIR, '..', '..', '..'))
THIRD_PARTY_DIR = os.path.join(THIS_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')
LLVM_BUILD_DIR = os.path.join(THIRD_PARTY_DIR, 'llvm-build')
LLVM_RELEASE_DIR = os.path.join(LLVM_BUILD_DIR, 'Release+Asserts')
STAMP_FILE = os.path.join(LLVM_BUILD_DIR, 'cr_build_revision')
def Tee(output, logfile):
logfile.write(output)
print output,
def TeeCmd(cmd, logfile, fail_hard=True):
"""Runs cmd and writes the output to both stdout and logfile."""
# Reading from PIPE can deadlock if one buffer is full but we wait on a
# different one. To work around this, pipe the subprocess's stderr to
# its stdout buffer and don't give it a stdin.
# shell=True is required in cmd.exe since depot_tools has an svn.bat, and
# bat files only work with shell=True set.
proc = subprocess.Popen(cmd, bufsize=1, shell=sys.platform == 'win32',
stdin=open(os.devnull), stdout=subprocess.PIPE,
stderr=subprocess.STDOUT)
for line in iter(proc.stdout.readline,''):
Tee(line, logfile)
if proc.poll() is not None:
break
exit_code = proc.wait()
if exit_code != 0 and fail_hard:
print 'Failed:', cmd
sys.exit(1)
def PrintTarProgress(tarinfo):
print 'Adding', tarinfo.name
return tarinfo
def GetExpectedStamp():
rev_cmd = [sys.executable, os.path.join(THIS_DIR, 'update.py'),
'--print-revision']
return subprocess.check_output(rev_cmd).rstrip()
def GetGsutilPath():
if not 'find_depot_tools' in sys.modules:
sys.path.insert(0, os.path.join(CHROMIUM_DIR, 'build'))
global find_depot_tools
import find_depot_tools
depot_path = find_depot_tools.add_depot_tools_to_path()
if depot_path is None:
print ('depot_tools are not found in PATH. '
'Follow the instructions in this document '
'http://dev.chromium.org/developers/how-tos/install-depot-tools'
' to install depot_tools and then try again.')
sys.exit(1)
gsutil_path = os.path.join(depot_path, 'gsutil.py')
return gsutil_path
def RunGsutil(args):
return subprocess.call([sys.executable, GetGsutilPath()] + args)
def GsutilArchiveExists(archive_name, platform):
gsutil_args = ['-q', 'stat',
'gs://chromium-browser-clang/%s/%s.tgz' %
(platform, archive_name)]
return RunGsutil(gsutil_args) == 0
def MaybeUpload(args, archive_name, platform):
# We don't want to rewrite the file, if it already exists on the server,
# so -n option to gsutil is used. It will warn, if the upload was aborted.
gsutil_args = ['cp', '-n', '-a', 'public-read',
'%s.tgz' % archive_name,
'gs://chromium-browser-clang/%s/%s.tgz' %
(platform, archive_name)]
if args.upload:
print 'Uploading %s to Google Cloud Storage...' % archive_name
exit_code = RunGsutil(gsutil_args)
if exit_code != 0:
print "gsutil failed, exit_code: %s" % exit_code
os.exit(exit_code)
else:
print 'To upload, run:'
print ('gsutil %s' % ' '.join(gsutil_args))
def main():
if sys.platform == 'win32':
try:
subprocess.check_output(['grep', '--help'], shell=True)
except subprocess.CalledProcessError:
print 'Add gnuwin32 to your PATH, then try again.'
return 1
parser = argparse.ArgumentParser(description='build and package clang')
parser.add_argument('--upload', action='store_true',
help='Upload the target archive to Google Cloud Storage.')
args = parser.parse_args()
# Check that the script is not going to upload a toolchain built from HEAD.
use_head_revision = 'LLVM_FORCE_HEAD_REVISION' in os.environ
if args.upload and use_head_revision:
print ("--upload and LLVM_FORCE_HEAD_REVISION could not be used "
"at the same time.")
return 1
expected_stamp = GetExpectedStamp()
pdir = 'clang-' + expected_stamp
golddir = 'llvmgold-' + expected_stamp
print pdir
if sys.platform == 'darwin':
platform = 'Mac'
elif sys.platform == 'win32':
platform = 'Win'
else:
platform = 'Linux_x64'
# Check if Google Cloud Storage already has the artifacts we want to build.
if (args.upload and GsutilArchiveExists(pdir, platform) and
not sys.platform.startswith('linux') or
GsutilArchiveExists(golddir, platform)):
print ('Desired toolchain revision %s is already available '
'in Google Cloud Storage:') % expected_stamp
print 'gs://chromium-browser-clang/%s/%s.tgz' % (platform, pdir)
if sys.platform.startswith('linux'):
print 'gs://chromium-browser-clang/%s/%s.tgz' % (platform, golddir)
return 0
with open('buildlog.txt', 'w') as log:
Tee('Diff in llvm:\n', log)
TeeCmd(['svn', 'stat', LLVM_DIR], log, fail_hard=False)
TeeCmd(['svn', 'diff', LLVM_DIR], log, fail_hard=False)
Tee('Diff in llvm/tools/clang:\n', log)
TeeCmd(['svn', 'stat', os.path.join(LLVM_DIR, 'tools', 'clang')],
log, fail_hard=False)
TeeCmd(['svn', 'diff', os.path.join(LLVM_DIR, 'tools', 'clang')],
log, fail_hard=False)
# TODO(thakis): compiler-rt is in projects/compiler-rt on Windows but
# llvm/compiler-rt elsewhere. So this diff call is currently only right on
# Windows.
Tee('Diff in llvm/compiler-rt:\n', log)
TeeCmd(['svn', 'stat', os.path.join(LLVM_DIR, 'projects', 'compiler-rt')],
log, fail_hard=False)
TeeCmd(['svn', 'diff', os.path.join(LLVM_DIR, 'projects', 'compiler-rt')],
log, fail_hard=False)
Tee('Diff in llvm/projects/libcxx:\n', log)
TeeCmd(['svn', 'stat', os.path.join(LLVM_DIR, 'projects', 'libcxx')],
log, fail_hard=False)
TeeCmd(['svn', 'diff', os.path.join(LLVM_DIR, 'projects', 'libcxx')],
log, fail_hard=False)
Tee('Starting build\n', log)
# Do a clobber build.
shutil.rmtree(LLVM_BOOTSTRAP_DIR, ignore_errors=True)
shutil.rmtree(LLVM_BOOTSTRAP_INSTALL_DIR, ignore_errors=True)
shutil.rmtree(LLVM_BUILD_DIR, ignore_errors=True)
build_cmd = [sys.executable, os.path.join(THIS_DIR, 'update.py'),
'--bootstrap', '--force-local-build', '--run-tests']
TeeCmd(build_cmd, log)
stamp = open(STAMP_FILE).read().rstrip()
if stamp != expected_stamp:
print 'Actual stamp (%s) != expected stamp (%s).' % (stamp, expected_stamp)
return 1
shutil.rmtree(pdir, ignore_errors=True)
# Copy a whitelist of files to the directory we're going to tar up.
# This supports the same patterns that the fnmatch module understands.
exe_ext = '.exe' if sys.platform == 'win32' else ''
want = ['bin/llvm-symbolizer' + exe_ext,
'lib/clang/*/asan_blacklist.txt',
'lib/clang/*/cfi_blacklist.txt',
# Copy built-in headers (lib/clang/3.x.y/include).
'lib/clang/*/include/*',
]
if sys.platform == 'win32':
want.append('bin/clang-cl.exe')
want.append('bin/lld-link.exe')
else:
so_ext = 'dylib' if sys.platform == 'darwin' else 'so'
want.extend(['bin/clang',
'lib/libFindBadConstructs.' + so_ext,
'lib/libBlinkGCPlugin.' + so_ext,
])
if sys.platform == 'darwin':
want.extend([# Copy only the OSX (ASan and profile) and iossim (ASan)
# runtime libraries:
'lib/clang/*/lib/darwin/*asan_osx*',
'lib/clang/*/lib/darwin/*asan_iossim*',
'lib/clang/*/lib/darwin/*profile_osx*',
])
elif sys.platform.startswith('linux'):
# Copy the libstdc++.so.6 we linked Clang against so it can run.
want.append('lib/libstdc++.so.6')
# Copy only
# lib/clang/*/lib/linux/libclang_rt.{[atm]san,san,ubsan,profile}-*.a ,
# but not dfsan.
want.extend(['lib/clang/*/lib/linux/*[atm]san*',
'lib/clang/*/lib/linux/*ubsan*',
'lib/clang/*/lib/linux/*libclang_rt.san*',
'lib/clang/*/lib/linux/*profile*',
'lib/clang/*/msan_blacklist.txt',
])
elif sys.platform == 'win32':
want.extend(['lib/clang/*/lib/windows/clang_rt.asan*.dll',
'lib/clang/*/lib/windows/clang_rt.asan*.lib',
'lib/clang/*/include_sanitizer/*',
])
for root, dirs, files in os.walk(LLVM_RELEASE_DIR):
# root: third_party/llvm-build/Release+Asserts/lib/..., rel_root: lib/...
rel_root = root[len(LLVM_RELEASE_DIR)+1:]
rel_files = [os.path.join(rel_root, f) for f in files]
wanted_files = list(set(itertools.chain.from_iterable(
fnmatch.filter(rel_files, p) for p in want)))
if wanted_files:
# Guaranteed to not yet exist at this point:
os.makedirs(os.path.join(pdir, rel_root))
for f in wanted_files:
src = os.path.join(LLVM_RELEASE_DIR, f)
dest = os.path.join(pdir, f)
shutil.copy(src, dest)
# Strip libraries.
if sys.platform == 'darwin' and f.endswith('.dylib'):
subprocess.call(['strip', '-x', dest])
elif (sys.platform.startswith('linux') and
os.path.splitext(f)[1] in ['.so', '.a']):
subprocess.call(['strip', '-g', dest])
# Set up symlinks.
if sys.platform != 'win32':
os.symlink('clang', os.path.join(pdir, 'bin', 'clang++'))
os.symlink('clang', os.path.join(pdir, 'bin', 'clang-cl'))
if sys.platform == 'darwin':
os.symlink('libc++.1.dylib', os.path.join(pdir, 'bin', 'libc++.dylib'))
# Also copy libc++ headers.
shutil.copytree(os.path.join(LLVM_BOOTSTRAP_INSTALL_DIR, 'include', 'c++'),
os.path.join(pdir, 'include', 'c++'))
# Copy buildlog over.
shutil.copy('buildlog.txt', pdir)
# Create archive.
tar_entries = ['bin', 'lib', 'buildlog.txt']
if sys.platform == 'darwin':
tar_entries += ['include']
with tarfile.open(pdir + '.tgz', 'w:gz') as tar:
for entry in tar_entries:
tar.add(os.path.join(pdir, entry), arcname=entry, filter=PrintTarProgress)
MaybeUpload(args, pdir, platform)
# Zip up gold plugin on Linux.
if sys.platform.startswith('linux'):
shutil.rmtree(golddir, ignore_errors=True)
os.makedirs(os.path.join(golddir, 'lib'))
shutil.copy(os.path.join(LLVM_RELEASE_DIR, 'lib', 'LLVMgold.so'),
os.path.join(golddir, 'lib'))
with tarfile.open(golddir + '.tgz', 'w:gz') as tar:
tar.add(os.path.join(golddir, 'lib'), arcname='lib',
filter=PrintTarProgress)
MaybeUpload(args, golddir, platform)
# FIXME: Warn if the file already exists on the server.
if __name__ == '__main__':
sys.exit(main())
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