78 строки
2.5 KiB
Python
Executable File
78 строки
2.5 KiB
Python
Executable File
#!/usr/bin/env python
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# Copyright (c) 2012 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 install ARM root image for cross building of ARM chrome on linux.
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This script can be run manually but is more often run as part of gclient
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hooks. When run from hooks this script should be a no-op on non-linux
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platforms.
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The sysroot image could be constructed from scratch based on the current
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state or precise/arm but for consistency we currently use a pre-built root
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image which was originally designed for building trusted NaCl code. The image
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will normally need to be rebuilt every time chrome's build dependancies are
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changed.
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Steps to rebuild the arm sysroot image:
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- cd $SRC/native_client
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- ./tools/trusted_cross_toolchains/trusted-toolchain-creator.armel.precise.sh \
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UpdatePackageLists
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- ./tools/trusted_cross_toolchains/trusted-toolchain-creator.armel.precise.sh \
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BuildJail $SRC/out/arm-sysroot.tar.gz
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- gsutil cp -a public-read $SRC/out/arm-sysroot.tar.gz \
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nativeclient-archive2/toolchain/$NACL_REV/sysroot-arm-trusted.tgz
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"""
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import os
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import shutil
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import subprocess
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import sys
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SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
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URL_PREFIX = 'https://commondatastorage.googleapis.com'
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URL_PATH = 'nativeclient-archive2/toolchain'
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REVISION = 12356
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TARBALL = 'sysroot-arm-trusted.tgz'
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def main(args):
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if '--linux-only' in args:
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# This argument is passed when run from the gclient hooks.
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# In this case we return early on non-linux platforms
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# or if GYP_DEFINES doesn't include target_arch=arm
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if not sys.platform.startswith('linux'):
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return 0
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if "target_arch=arm" not in os.environ.get('GYP_DEFINES', ''):
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return 0
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src_root = os.path.dirname(os.path.dirname(SCRIPT_DIR))
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sysroot = os.path.join(src_root, 'arm-sysroot')
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url = "%s/%s/%s/%s" % (URL_PREFIX, URL_PATH, REVISION, TARBALL)
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stamp = os.path.join(sysroot, ".stamp")
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if os.path.exists(stamp):
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with open(stamp) as s:
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if s.read() == url:
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print "ARM root image already up-to-date: %s" % sysroot
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return 0
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print "Installing ARM root image: %s" % sysroot
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if os.path.isdir(sysroot):
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shutil.rmtree(sysroot)
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os.mkdir(sysroot)
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tarball = os.path.join(sysroot, TARBALL)
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subprocess.check_call(['curl', '-L', url, '-o', tarball])
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subprocess.check_call(['tar', 'xf', tarball, '-C', sysroot])
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os.remove(tarball)
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with open(stamp, 'w') as s:
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s.write(url)
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return 0
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if __name__ == '__main__':
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sys.exit(main(sys.argv[1:]))
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