1 #!/usr/bin/env python 2 # Copyright (c) 2012 The Chromium Authors. All rights reserved. 3 # Use of this source code is governed by a BSD-style license that can be 4 # found in the LICENSE file. 5 6 """Shim to run nacl toolchain download script only if there is a nacl dir.""" 7 8 import os 9 import sys 10 11 12 def Main(args): 13 # Exit early if disable_nacl=1. 14 if 'disable_nacl=1' in os.environ.get('GYP_DEFINES', ''): 15 return 0 16 script_dir = os.path.dirname(os.path.abspath(__file__)) 17 src_dir = os.path.dirname(script_dir) 18 nacl_dir = os.path.join(src_dir, 'native_client') 19 nacl_build_dir = os.path.join(nacl_dir, 'build') 20 download_script = os.path.join(nacl_build_dir, 'download_toolchains.py') 21 if not os.path.exists(download_script): 22 print "Can't find '%s'" % download_script 23 print 'Presumably you are intentionally building without NativeClient.' 24 print 'Skipping NativeClient toolchain download.' 25 sys.exit(0) 26 sys.path.insert(0, nacl_build_dir) 27 import download_toolchains 28 29 # TODO (robertm): Finish getting PNaCl ready for prime time. 30 # BUG: 31 # We remove this --optional-pnacl argument, and instead replace it with 32 # --no-pnacl for most cases. However, if the bot name is an sdk 33 # bot then we will go ahead and download it. This prevents increasing the 34 # gclient sync time for developers, or standard Chrome bots. 35 if '--optional-pnacl' in args: 36 args.remove('--optional-pnacl') 37 use_pnacl = False 38 buildbot_name = os.environ.get('BUILDBOT_BUILDERNAME', '') 39 if 'pnacl' in buildbot_name and 'sdk' in buildbot_name: 40 use_pnacl = True 41 if use_pnacl: 42 print '\n*** DOWNLOADING PNACL TOOLCHAIN ***\n' 43 else: 44 args.append('--no-pnacl') 45 46 # Only download the ARM gcc toolchain if we are building for ARM 47 # TODO(olonho): we need to invent more reliable way to get build 48 # configuration info, to know if we're building for ARM. 49 if 'target_arch=arm' in os.environ.get('GYP_DEFINES', ''): 50 args.append('--arm-untrusted') 51 52 # Append the name of the file to use as a version and hash source. 53 # NOTE: While not recommended, it is possible to redirect this file to 54 # a chrome location to avoid branching NaCl if just a toolchain needs 55 # to be bumped. 56 args.append(os.path.join(nacl_dir, 'TOOL_REVISIONS')) 57 58 download_toolchains.main(args) 59 return 0 60 61 62 if __name__ == '__main__': 63 sys.exit(Main(sys.argv[1:])) 64
