| #!/usr/bin/env python |
| # Copyright (c) 2013 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. |
| |
| """Install Debian Wheezy sysroots for building chromium. |
| """ |
| |
| # The sysroot is needed to ensure that binaries will run on Debian Wheezy, |
| # the oldest supported linux distribution. This script can be run manually but |
| # is more often run as part of gclient hooks. When run from hooks this script |
| # in a no-op on non-linux platforms. |
| |
| # The sysroot image could be constructed from scratch based on the current |
| # state or Debian Wheezy but for consistency we currently use a pre-built root |
| # image. The image will normally need to be rebuilt every time chrome's build |
| # dependencies are changed. |
| |
| import hashlib |
| import platform |
| import optparse |
| import os |
| import re |
| import shutil |
| import subprocess |
| import sys |
| |
| SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__)) |
| sys.path.append(os.path.dirname(os.path.dirname(SCRIPT_DIR))) |
| import detect_host_arch |
| import gyp_chromium |
| import gyp_environment |
| |
| |
| URL_PREFIX = 'http://commondatastorage.googleapis.com' |
| URL_PATH = 'chrome-linux-sysroot/toolchain' |
| REVISION_AMD64 = 'bd0a221bc45ed0e70fcce0ce79f6dd86f4dfda07' |
| REVISION_ARM = 'bd0a221bc45ed0e70fcce0ce79f6dd86f4dfda07' |
| REVISION_I386 = 'bd0a221bc45ed0e70fcce0ce79f6dd86f4dfda07' |
| REVISION_MIPS = 'bd0a221bc45ed0e70fcce0ce79f6dd86f4dfda07' |
| TARBALL_AMD64 = 'debian_wheezy_amd64_sysroot.tgz' |
| TARBALL_ARM = 'debian_wheezy_arm_sysroot.tgz' |
| TARBALL_I386 = 'debian_wheezy_i386_sysroot.tgz' |
| TARBALL_MIPS = 'debian_wheezy_mips_sysroot.tgz' |
| TARBALL_AMD64_SHA1SUM = 'a0c85e8c964638ea4e442cb6d59b8f478830a453' |
| TARBALL_ARM_SHA1SUM = '8df826acab843414904a8925e802a5d1ab57b80c' |
| TARBALL_I386_SHA1SUM = '8d64c34221be9d1f161e928fee4c558bda873a8e' |
| TARBALL_MIPS_SHA1SUM = '52f84b34b7b050ae8c35742fa4268051f272ffeb' |
| SYSROOT_DIR_AMD64 = 'debian_wheezy_amd64-sysroot' |
| SYSROOT_DIR_ARM = 'debian_wheezy_arm-sysroot' |
| SYSROOT_DIR_I386 = 'debian_wheezy_i386-sysroot' |
| SYSROOT_DIR_MIPS = 'debian_wheezy_mips-sysroot' |
| |
| valid_archs = ('arm', 'i386', 'amd64', 'mips') |
| |
| |
| class Error(Exception): |
| pass |
| |
| |
| def GetSha1(filename): |
| sha1 = hashlib.sha1() |
| with open(filename, 'rb') as f: |
| while True: |
| # Read in 1mb chunks, so it doesn't all have to be loaded into memory. |
| chunk = f.read(1024*1024) |
| if not chunk: |
| break |
| sha1.update(chunk) |
| return sha1.hexdigest() |
| |
| |
| def DetectHostArch(): |
| # Figure out host arch using build/detect_host_arch.py and |
| # set target_arch to host arch |
| detected_host_arch = detect_host_arch.HostArch() |
| if detected_host_arch == 'x64': |
| return 'amd64' |
| elif detected_host_arch == 'ia32': |
| return 'i386' |
| elif detected_host_arch == 'arm': |
| return 'arm' |
| elif detected_host_arch == 'mips': |
| return 'mips' |
| |
| raise Error('Unrecognized host arch: %s' % detected_host_arch) |
| |
| |
| def DetectTargetArch(): |
| """Attempt for determine target architecture. |
| |
| This works by looking for target_arch in GYP_DEFINES. |
| """ |
| # TODO(agrieve): Make this script not depend on GYP_DEFINES so that it works |
| # with GN as well. |
| gyp_environment.SetEnvironment() |
| supplemental_includes = gyp_chromium.GetSupplementalFiles() |
| gyp_defines = gyp_chromium.GetGypVars(supplemental_includes) |
| target_arch = gyp_defines.get('target_arch') |
| if target_arch == 'x64': |
| return 'amd64' |
| elif target_arch == 'ia32': |
| return 'i386' |
| elif target_arch == 'arm': |
| return 'arm' |
| elif target_arch == 'arm64': |
| return 'arm64' |
| elif target_arch == 'mipsel': |
| return 'mips' |
| elif target_arch: |
| raise Error('Unrecognized target_arch: %s' % target_arch) |
| |
| return None |
| |
| |
| def InstallDefaultSysroots(): |
| """Install the default set of sysroot images. |
| |
| This includes at least the sysroot for host architecture, and the 32-bit |
| sysroot for building the v8 snapshot image. It can also include the cross |
| compile sysroot for ARM/MIPS if cross compiling environment can be detected. |
| """ |
| host_arch = DetectHostArch() |
| InstallSysroot(host_arch) |
| |
| if host_arch == 'amd64': |
| InstallSysroot('i386') |
| |
| # Finally, if we can detect a non-standard target_arch such as ARM or |
| # MIPS, then install the sysroot too. |
| # Don't attampt to install arm64 since this is currently and android-only |
| # architecture. |
| target_arch = DetectTargetArch() |
| if target_arch and target_arch not in (host_arch, 'i386', 'arm64'): |
| InstallSysroot(target_arch) |
| |
| |
| def main(): |
| if options.running_as_hook and not sys.platform.startswith('linux'): |
| return 0 |
| |
| if options.running_as_hook: |
| InstallDefaultSysroots() |
| else: |
| if not options.arch: |
| print 'You much specify either --arch or --running-as-hook' |
| return 1 |
| InstallSysroot(options.arch) |
| |
| return 0 |
| |
| |
| def InstallSysroot(target_arch): |
| # The sysroot directory should match the one specified in build/common.gypi. |
| # TODO(thestig) Consider putting this else where to avoid having to recreate |
| # it on every build. |
| linux_dir = os.path.dirname(SCRIPT_DIR) |
| if target_arch == 'amd64': |
| sysroot = os.path.join(linux_dir, SYSROOT_DIR_AMD64) |
| tarball_filename = TARBALL_AMD64 |
| tarball_sha1sum = TARBALL_AMD64_SHA1SUM |
| revision = REVISION_AMD64 |
| elif target_arch == 'arm': |
| sysroot = os.path.join(linux_dir, SYSROOT_DIR_ARM) |
| tarball_filename = TARBALL_ARM |
| tarball_sha1sum = TARBALL_ARM_SHA1SUM |
| revision = REVISION_ARM |
| elif target_arch == 'i386': |
| sysroot = os.path.join(linux_dir, SYSROOT_DIR_I386) |
| tarball_filename = TARBALL_I386 |
| tarball_sha1sum = TARBALL_I386_SHA1SUM |
| revision = REVISION_I386 |
| elif target_arch == 'mips': |
| sysroot = os.path.join(linux_dir, SYSROOT_DIR_MIPS) |
| tarball_filename = TARBALL_MIPS |
| tarball_sha1sum = TARBALL_MIPS_SHA1SUM |
| revision = REVISION_MIPS |
| else: |
| raise Error('Unknown architecture: %s' % target_arch) |
| |
| url = '%s/%s/%s/%s' % (URL_PREFIX, URL_PATH, revision, tarball_filename) |
| |
| stamp = os.path.join(sysroot, '.stamp') |
| if os.path.exists(stamp): |
| with open(stamp) as s: |
| if s.read() == url: |
| print 'Debian Wheezy %s root image already up-to-date: %s' % \ |
| (target_arch, sysroot) |
| return |
| |
| print 'Installing Debian Wheezy %s root image: %s' % (target_arch, sysroot) |
| if os.path.isdir(sysroot): |
| shutil.rmtree(sysroot) |
| os.mkdir(sysroot) |
| tarball = os.path.join(sysroot, tarball_filename) |
| print 'Downloading %s' % url |
| sys.stdout.flush() |
| sys.stderr.flush() |
| subprocess.check_call(['curl', '--fail', '-L', url, '-o', tarball]) |
| sha1sum = GetSha1(tarball) |
| if sha1sum != tarball_sha1sum: |
| raise Error('Tarball sha1sum is wrong.' |
| 'Expected %s, actual: %s' % (tarball_sha1sum, sha1sum)) |
| subprocess.check_call(['tar', 'xf', tarball, '-C', sysroot]) |
| os.remove(tarball) |
| |
| with open(stamp, 'w') as s: |
| s.write(url) |
| |
| |
| if __name__ == '__main__': |
| parser = optparse.OptionParser('usage: %prog [OPTIONS]', description=__doc__) |
| parser.add_option('--running-as-hook', action='store_true', |
| default=False, help='Used when running from gclient hooks.' |
| ' Installs default sysroot images.') |
| parser.add_option('--arch', type='choice', choices=valid_archs, |
| help='Sysroot architecture: %s' % ', '.join(valid_archs)) |
| options, _ = parser.parse_args() |
| sys.exit(main()) |