| #!/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 sysroots for building chromium. |
| """ |
| |
| # The sysroot is needed to ensure that binaries will run on Debian Wheezy, |
| # the oldest supported linux distribution. For ARM64 linux, we have Debian |
| # Jessie sysroot as Jessie is the first version with ARM64 support. This script |
| # can be run manually but is more often run as part of gclient hooks. When run |
| # from hooks this script is a no-op on non-linux platforms. |
| |
| # The sysroot image could be constructed from scratch based on the current |
| # state or Debian Wheezy/Jessie 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 = 'https://commondatastorage.googleapis.com' |
| URL_PATH = 'chrome-linux-sysroot/toolchain' |
| |
| SYSROOTS = { |
| ('Wheezy', 'amd64'): { |
| 'Revision' : 'e964581657e61f47a74b7e2e34e33744ac53d5a6', |
| 'Tarball' : 'debian_wheezy_amd64_sysroot.tgz', |
| 'Sha1Sum' : 'd67377aedc8ca477a50cc75aeb59542c8cd98894', |
| 'SysrootDir' : 'debian_wheezy_amd64-sysroot' |
| }, |
| ('Wheezy', 'arm'): { |
| 'Revision' : 'e964581657e61f47a74b7e2e34e33744ac53d5a6', |
| 'Tarball' : 'debian_wheezy_arm_sysroot.tgz', |
| 'Sha1Sum' : 'ab538d29171823951a330ba7f8ac1502f3670ebe', |
| 'SysrootDir' : 'debian_wheezy_arm-sysroot' |
| }, |
| ('Wheezy', 'i386'): { |
| 'Revision' : 'e964581657e61f47a74b7e2e34e33744ac53d5a6', |
| 'Tarball' : 'debian_wheezy_i386_sysroot.tgz', |
| 'Sha1Sum' : '8d7f58fc77be09cad83f246a5d730de45ac48efb', |
| 'SysrootDir' : 'debian_wheezy_i386-sysroot' |
| }, |
| ('Wheezy', 'mips'): { |
| 'Revision' : 'e964581657e61f47a74b7e2e34e33744ac53d5a6', |
| 'Tarball' : 'debian_wheezy_mips_sysroot.tgz', |
| 'Sha1Sum' : '9960b7398487038709bdb8419c144ebee5eff061', |
| 'SysrootDir' : 'debian_wheezy_mips-sysroot' |
| }, |
| ('Jessie', 'arm64'): { |
| 'Revision' : 'e964581657e61f47a74b7e2e34e33744ac53d5a6', |
| 'Tarball' : 'debian_jessie_arm64_sysroot.tgz', |
| 'Sha1Sum' : '035e6abf3bd8e6c5e8ce27cf62b6502cbffefe6b', |
| 'SysrootDir' : 'debian_jessie_arm64-sysroot' |
| }, |
| ('Precise', 'amd64'): { |
| 'Revision' : 'e964581657e61f47a74b7e2e34e33744ac53d5a6', |
| 'Tarball' : 'ubuntu_precise_amd64_sysroot.tgz', |
| 'Sha1Sum' : '9f13ac5b78027082ff7e7c34d55533dcb85a2c01', |
| 'SysrootDir' : 'ubuntu_precise_amd64-sysroot' |
| } |
| } |
| |
| valid_archs = ('arm', 'arm64', '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 == 'arm64': |
| return 'arm64' |
| elif detected_host_arch == 'mips': |
| return 'mips' |
| elif detected_host_arch == 'ppc': |
| return 'ppc' |
| elif detected_host_arch == 's390': |
| return 's390' |
| |
| 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' |
| |
| return None |
| |
| |
| def InstallDefaultSysroots(host_arch): |
| """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. |
| |
| Another reason we're installing this by default is so that developers can |
| compile and run on our supported platforms without having to worry about |
| flipping things back and forth and whether the sysroots have been downloaded |
| or not. |
| """ |
| InstallDefaultSysrootForArch(host_arch) |
| |
| if host_arch == 'amd64': |
| InstallDefaultSysrootForArch('i386') |
| |
| # Desktop Chromium OS builds require the precise sysroot. |
| # TODO(thomasanderson): only download this when the GN arg target_os |
| # == 'chromeos', when the functionality to perform the check becomes |
| # available. |
| InstallSysroot('Precise', 'amd64') |
| |
| # 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'): |
| InstallDefaultSysrootForArch(target_arch) |
| |
| |
| def main(args): |
| 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(args) |
| if options.running_as_hook and not sys.platform.startswith('linux'): |
| return 0 |
| |
| if options.running_as_hook: |
| host_arch = DetectHostArch() |
| # PPC/s390 don't use sysroot, see http://crbug.com/646169 |
| if host_arch in ['ppc','s390']: |
| return 0 |
| InstallDefaultSysroots(host_arch) |
| else: |
| if not options.arch: |
| print 'You much specify either --arch or --running-as-hook' |
| return 1 |
| InstallDefaultSysrootForArch(options.arch) |
| |
| return 0 |
| |
| def InstallDefaultSysrootForArch(target_arch): |
| if target_arch == 'amd64': |
| InstallSysroot('Wheezy', 'amd64') |
| elif target_arch == 'arm': |
| InstallSysroot('Wheezy', 'arm') |
| elif target_arch == 'arm64': |
| InstallSysroot('Jessie', 'arm64') |
| elif target_arch == 'i386': |
| InstallSysroot('Wheezy', 'i386') |
| elif target_arch == 'mips': |
| InstallSysroot('Wheezy', 'mips') |
| else: |
| raise Error('Unknown architecture: %s' % target_arch) |
| |
| def InstallSysroot(target_platform, 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_platform, target_arch) not in SYSROOTS: |
| raise Error('No sysroot for: %s %s' % (target_platform, target_arch)) |
| sysroot_dict = SYSROOTS[(target_platform, target_arch)] |
| revision = sysroot_dict['Revision'] |
| tarball_filename = sysroot_dict['Tarball'] |
| tarball_sha1sum = sysroot_dict['Sha1Sum'] |
| sysroot = os.path.join(linux_dir, sysroot_dict['SysrootDir']) |
| |
| 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 %s %s root image already up to date: %s' % \ |
| (target_platform, target_arch, sysroot) |
| return |
| |
| print 'Installing Debian %s %s root image: %s' % \ |
| (target_platform, 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( |
| ['wget', '--quiet', '-t', '3', '-O', tarball, url]) |
| 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__': |
| try: |
| sys.exit(main(sys.argv[1:])) |
| except Error as e: |
| sys.stderr.write(str(e) + '\n') |
| sys.exit(1) |