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290 lines
10 KiB
290 lines
10 KiB
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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#
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# Copyright 2020 The Chromium OS 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 checkout the ChromeOS source.
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This script sets up the ChromeOS source in the given directory, matching a
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particular release of ChromeOS.
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"""
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from __future__ import print_function
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__author__ = ('asharif@google.com (Ahmad Sharif) '
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'llozano@google.com (Luis Lozano) '
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'raymes@google.com (Raymes Khoury) '
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'shenhan@google.com (Han Shen)')
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import argparse
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import os
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import sys
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from cros_utils import command_executer
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from cros_utils import logger
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from cros_utils import misc
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def Usage(parser, message):
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print('ERROR: %s' % message)
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parser.print_help()
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sys.exit(0)
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def Main(argv):
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"""Build ChromeOS."""
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# Common initializations
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cmd_executer = command_executer.GetCommandExecuter()
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parser = argparse.ArgumentParser()
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parser.add_argument(
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'--chromeos_root',
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dest='chromeos_root',
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help='Target directory for ChromeOS installation.')
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parser.add_argument(
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'--clobber_chroot',
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dest='clobber_chroot',
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action='store_true',
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help='Delete the chroot and start fresh',
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default=False)
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parser.add_argument(
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'--clobber_board',
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dest='clobber_board',
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action='store_true',
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help='Delete the board and start fresh',
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default=False)
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parser.add_argument(
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'--rebuild',
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dest='rebuild',
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action='store_true',
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help='Rebuild all board packages except the toolchain.',
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default=False)
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parser.add_argument(
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'--cflags',
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dest='cflags',
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default='',
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help='CFLAGS for the ChromeOS packages')
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parser.add_argument(
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'--cxxflags',
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dest='cxxflags',
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default='',
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help='CXXFLAGS for the ChromeOS packages')
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parser.add_argument(
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'--ldflags',
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dest='ldflags',
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default='',
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help='LDFLAGS for the ChromeOS packages')
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parser.add_argument(
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'--board', dest='board', help='ChromeOS target board, e.g. x86-generic')
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parser.add_argument(
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'--package', dest='package', help='The package needs to be built')
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parser.add_argument(
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'--label',
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dest='label',
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help='Optional label symlink to point to build dir.')
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parser.add_argument(
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'--dev',
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dest='dev',
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default=False,
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action='store_true',
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help=('Make the final image in dev mode (eg writable, '
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'more space on image). Defaults to False.'))
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parser.add_argument(
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'--debug',
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dest='debug',
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default=False,
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action='store_true',
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help=('Optional. Build chrome browser with "-g -O0". '
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"Notice, this also turns on '--dev'. "
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'Defaults to False.'))
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parser.add_argument(
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'--env', dest='env', default='', help='Env to pass to build_packages.')
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parser.add_argument(
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'--vanilla',
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dest='vanilla',
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default=False,
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action='store_true',
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help='Use default ChromeOS toolchain.')
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parser.add_argument(
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'--vanilla_image',
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dest='vanilla_image',
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default=False,
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action='store_true',
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help=('Use prebuild packages for building the image. '
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'It also implies the --vanilla option is set.'))
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options = parser.parse_args(argv[1:])
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if options.chromeos_root is None:
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Usage(parser, '--chromeos_root must be set')
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options.chromeos_root = os.path.expanduser(options.chromeos_root)
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scripts_dir = os.path.join(options.chromeos_root, 'src', 'scripts')
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if not os.path.isdir(scripts_dir):
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Usage(parser, '--chromeos_root must be set up first. Use setup_chromeos.py')
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if options.board is None:
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Usage(parser, '--board must be set')
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if options.debug:
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options.dev = True
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build_packages_env = options.env
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if build_packages_env.find('EXTRA_BOARD_FLAGS=') != -1:
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logger.GetLogger().LogFatal(
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('Passing "EXTRA_BOARD_FLAGS" in "--env" is not supported. '
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'This flags is used internally by this script. '
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'Contact the author for more detail.'))
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if options.rebuild:
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build_packages_env += ' EXTRA_BOARD_FLAGS=-e'
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# EXTRA_BOARD_FLAGS=-e should clean up the object files for the chrome
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# browser but it doesn't. So do it here.
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misc.RemoveChromeBrowserObjectFiles(options.chromeos_root, options.board)
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# Build with afdo_use by default.
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# To change the default use --env="USE=-afdo_use".
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build_packages_env = misc.MergeEnvStringWithDict(
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build_packages_env, {'USE': 'chrome_internal afdo_use -cros-debug'})
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build_packages_command = misc.GetBuildPackagesCommand(
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board=options.board, usepkg=options.vanilla_image, debug=options.debug)
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if options.package:
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build_packages_command += ' {0}'.format(options.package)
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build_image_command = misc.GetBuildImageCommand(options.board, options.dev)
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if options.vanilla or options.vanilla_image:
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command = misc.GetSetupBoardCommand(
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options.board,
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usepkg=options.vanilla_image,
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force=options.clobber_board)
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command += '; ' + build_packages_env + ' ' + build_packages_command
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command += '&& ' + build_packages_env + ' ' + build_image_command
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ret = cmd_executer.ChrootRunCommand(options.chromeos_root, command)
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return ret
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# Setup board
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if not os.path.isdir(options.chromeos_root + '/chroot/build/' +
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options.board) or options.clobber_board:
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# Run build_tc.py from binary package
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ret = cmd_executer.ChrootRunCommand(
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options.chromeos_root,
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misc.GetSetupBoardCommand(options.board, force=options.clobber_board))
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logger.GetLogger().LogFatalIf(ret, 'setup_board failed')
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else:
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logger.GetLogger().LogOutput('Did not setup_board '
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'because it already exists')
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if options.debug:
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# Perform 2-step build_packages to build a debug chrome browser.
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# Firstly, build everything that chromeos-chrome depends on normally.
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if options.rebuild:
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# Give warning about "--rebuild" and "--debug". Under this combination,
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# only dependencies of "chromeos-chrome" get rebuilt.
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logger.GetLogger().LogWarning(
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'--rebuild" does not correctly re-build every package when '
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'"--debug" is enabled. ')
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# Replace EXTRA_BOARD_FLAGS=-e with "-e --onlydeps"
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build_packages_env = build_packages_env.replace(
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'EXTRA_BOARD_FLAGS=-e', 'EXTRA_BOARD_FLAGS="-e --onlydeps"')
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else:
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build_packages_env += ' EXTRA_BOARD_FLAGS=--onlydeps'
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ret = cmd_executer.ChrootRunCommand(
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options.chromeos_root, 'CFLAGS="$(portageq-%s envvar CFLAGS) %s" '
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'CXXFLAGS="$(portageq-%s envvar CXXFLAGS) %s" '
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'LDFLAGS="$(portageq-%s envvar LDFLAGS) %s" '
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'CHROME_ORIGIN=SERVER_SOURCE '
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'%s '
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'%s --skip_chroot_upgrade'
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'chromeos-chrome' % (options.board, options.cflags, options.board,
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options.cxxflags, options.board, options.ldflags,
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build_packages_env, build_packages_command))
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logger.GetLogger().LogFatalIf(\
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ret, 'build_packages failed while trying to build chromeos-chrome deps.')
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# Secondly, build chromeos-chrome using debug mode.
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# Replace '--onlydeps' with '--nodeps'.
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if options.rebuild:
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build_packages_env = build_packages_env.replace(
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'EXTRA_BOARD_FLAGS="-e --onlydeps"', 'EXTRA_BOARD_FLAGS=--nodeps')
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else:
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build_packages_env = build_packages_env.replace(
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'EXTRA_BOARD_FLAGS=--onlydeps', 'EXTRA_BOARD_FLAGS=--nodeps')
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ret = cmd_executer.ChrootRunCommand(
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options.chromeos_root, 'CFLAGS="$(portageq-%s envvar CFLAGS) %s" '
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'CXXFLAGS="$(portageq-%s envvar CXXFLAGS) %s" '
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'LDFLAGS="$(portageq-%s envvar LDFLAGS) %s" '
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'CHROME_ORIGIN=SERVER_SOURCE BUILDTYPE=Debug '
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'%s '
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'%s --skip_chroot_upgrade'
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'chromeos-chrome' % (options.board, options.cflags, options.board,
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options.cxxflags, options.board, options.ldflags,
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build_packages_env, build_packages_command))
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logger.GetLogger().LogFatalIf(
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ret,
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'build_packages failed while trying to build debug chromeos-chrome.')
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# Now, we have built chromeos-chrome and all dependencies.
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# Finally, remove '-e' from EXTRA_BOARD_FLAGS,
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# otherwise, chromeos-chrome gets rebuilt.
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build_packages_env = build_packages_env.replace(\
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'EXTRA_BOARD_FLAGS=--nodeps', '')
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# Up to now, we have a debug built chromos-chrome browser.
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# Fall through to build the rest of the world.
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# Build packages
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ret = cmd_executer.ChrootRunCommand(
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options.chromeos_root, 'CFLAGS="$(portageq-%s envvar CFLAGS) %s" '
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'CXXFLAGS="$(portageq-%s envvar CXXFLAGS) %s" '
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'LDFLAGS="$(portageq-%s envvar LDFLAGS) %s" '
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'CHROME_ORIGIN=SERVER_SOURCE '
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'%s '
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'%s --skip_chroot_upgrade' %
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(options.board, options.cflags, options.board, options.cxxflags,
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options.board, options.ldflags, build_packages_env,
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build_packages_command))
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logger.GetLogger().LogFatalIf(ret, 'build_packages failed')
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if options.package:
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return 0
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# Build image
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ret = cmd_executer.ChrootRunCommand(
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options.chromeos_root, build_packages_env + ' ' + build_image_command)
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logger.GetLogger().LogFatalIf(ret, 'build_image failed')
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flags_file_name = 'flags.txt'
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flags_file_path = ('%s/src/build/images/%s/latest/%s' %
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(options.chromeos_root, options.board, flags_file_name))
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with open(flags_file_path, 'w', encoding='utf-8') as flags_file:
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flags_file.write('CFLAGS=%s\n' % options.cflags)
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flags_file.write('CXXFLAGS=%s\n' % options.cxxflags)
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flags_file.write('LDFLAGS=%s\n' % options.ldflags)
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if options.label:
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image_dir_path = ('%s/src/build/images/%s/latest' % (options.chromeos_root,
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options.board))
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real_image_dir_path = os.path.realpath(image_dir_path)
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command = ('ln -sf -T %s %s/%s' % (os.path.basename(real_image_dir_path),
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os.path.dirname(real_image_dir_path),
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options.label))
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ret = cmd_executer.RunCommand(command)
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logger.GetLogger().LogFatalIf(
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ret, 'Failed to apply symlink label %s' % options.label)
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return ret
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if __name__ == '__main__':
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retval = Main(sys.argv)
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sys.exit(retval)
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