| #!/usr/bin/env python |
| # Copyright 2017 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. |
| """Script to download llvm-objdump and related utils from google storage.""" |
| |
| import os |
| import re |
| import subprocess |
| import sys |
| import urllib2 |
| |
| import update |
| |
| LLVM_BUILD_DIR = update.LLVM_BUILD_DIR |
| OBJDUMP_PATH = os.path.join(LLVM_BUILD_DIR, 'bin', 'llvm-objdump') |
| STAMP_FILE = os.path.normpath( |
| os.path.join(LLVM_BUILD_DIR, 'llvmobjdump_build_revision')) |
| |
| |
| def AlreadyUpToDate(): |
| if not os.path.exists(OBJDUMP_PATH) or not os.path.exists(STAMP_FILE): |
| return False |
| stamp = update.ReadStampFile(STAMP_FILE) |
| return stamp.rstrip() == update.PACKAGE_VERSION |
| |
| |
| def DownloadAndUnpackLlvmObjDumpPackage(platform): |
| cds_file = 'llvmobjdump-%s.tgz' % update.PACKAGE_VERSION |
| cds_full_url = update.GetPlatformUrlPrefix(platform) + cds_file |
| try: |
| update.DownloadAndUnpack(cds_full_url, update.LLVM_BUILD_DIR) |
| except urllib2.URLError: |
| print 'Failed to download prebuilt utils %s' % cds_file |
| print 'Use --force-local-build if you want to build locally.' |
| print 'Exiting.' |
| sys.exit(1) |
| |
| |
| def main(): |
| if not AlreadyUpToDate(): |
| DownloadAndUnpackLlvmObjDumpPackage(sys.platform) |
| return 0 |
| |
| |
| if __name__ == '__main__': |
| sys.exit(main()) |
