d9fd711a61
BUG=chromium:515782 LOG=n Review URL: https://codereview.chromium.org/1321943004 Cr-Commit-Position: refs/heads/master@{#30583}
82 lines
2.8 KiB
Python
Executable File
82 lines
2.8 KiB
Python
Executable File
#!/usr/bin/env python
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# Copyright 2015 the V8 project authors. All rights reserved.
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# Copyright 2015 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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"""Script to download LLVM gold plugin from google storage."""
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import json
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import os
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import re
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import platform
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import shutil
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import subprocess
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import sys
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import zipfile
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# Bail out on windows and cygwin.
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if "win" in platform.system().lower():
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# Python 2.7.6 hangs at the second path.insert command on windows. Works
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# with python 2.7.8.
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print "Gold plugin download not supported on windows."
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sys.exit(0)
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SCRIPT_DIR = os.path.dirname(os.path.realpath(__file__))
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CHROME_SRC = os.path.abspath(os.path.join(SCRIPT_DIR, os.pardir))
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sys.path.insert(0, os.path.join(CHROME_SRC, 'tools'))
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import find_depot_tools
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DEPOT_PATH = find_depot_tools.add_depot_tools_to_path()
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GSUTIL_PATH = os.path.join(DEPOT_PATH, 'gsutil.py')
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LLVM_BUILD_PATH = os.path.join(CHROME_SRC, 'third_party', 'llvm-build',
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'Release+Asserts')
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CLANG_UPDATE_PY = os.path.join(CHROME_SRC, 'tools', 'clang', 'scripts',
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'update.py')
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CLANG_REVISION = os.popen(CLANG_UPDATE_PY + ' --print-revision').read().rstrip()
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CLANG_BUCKET = 'gs://chromium-browser-clang/Linux_x64'
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GOLD_PLUGIN_PATH = os.path.join(LLVM_BUILD_PATH, 'lib', 'LLVMgold.so')
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sys.path.insert(0, os.path.join(CHROME_SRC, 'tools', 'clang', 'scripts'))
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import update
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def main():
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if not re.search(r'cfi_vptr=1', os.environ.get('GYP_DEFINES', '')):
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# Bailout if this is not a cfi build.
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print 'Skipping gold plugin download for non-cfi build.'
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return 0
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if (os.path.exists(GOLD_PLUGIN_PATH) and
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update.ReadStampFile().strip() == update.PACKAGE_VERSION):
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# Bailout if clang is up-to-date. This requires the script to be run before
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# the clang update step! I.e. afterwards clang would always be up-to-date.
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print 'Skipping gold plugin download. File present and clang up to date.'
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return 0
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# Make sure this works on empty checkouts (i.e. clang not downloaded yet).
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if not os.path.exists(LLVM_BUILD_PATH):
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os.makedirs(LLVM_BUILD_PATH)
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targz_name = 'llvmgold-%s.tgz' % CLANG_REVISION
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remote_path = '%s/%s' % (CLANG_BUCKET, targz_name)
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os.chdir(LLVM_BUILD_PATH)
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# TODO(pcc): Fix gsutil.py cp url file < /dev/null 2>&0
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# (currently aborts with exit code 1,
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# https://github.com/GoogleCloudPlatform/gsutil/issues/289) or change the
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# stdin->stderr redirect in update.py to do something else (crbug.com/494442).
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subprocess.check_call(['python', GSUTIL_PATH,
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'cp', remote_path, targz_name],
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stderr=open('/dev/null', 'w'))
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subprocess.check_call(['tar', 'xzf', targz_name])
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os.remove(targz_name)
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return 0
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if __name__ == '__main__':
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sys.exit(main())
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