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#!/usr/bin/env python
#
# Copyright (C) 2022 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy of
# the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.
#
"""Generates dexopt files for vendor apps, from a merged target_files.
Expects items in OPTIONS prepared by merge_target_files.py.
"""
import glob
import json
import logging
import os
import shutil
import subprocess
import common
import merge_utils
logger = logging.getLogger(__name__)
OPTIONS = common.OPTIONS
def MergeDexopt(temp_dir, output_target_files_dir):
"""If needed, generates dexopt files for vendor apps.
Args:
temp_dir: Location containing an 'output' directory where target files have
been extracted, e.g. <temp_dir>/output/SYSTEM, <temp_dir>/output/IMAGES,
etc.
output_target_files_dir: The name of a directory that will be used to create
the output target files package after all the special cases are processed.
"""
# Load vendor and framework META/misc_info.txt.
if (OPTIONS.vendor_misc_info.get('building_with_vsdk') != 'true' or
OPTIONS.framework_dexpreopt_tools is None or
OPTIONS.framework_dexpreopt_config is None or
OPTIONS.vendor_dexpreopt_config is None):
return
logger.info('applying dexpreopt')
# The directory structure to apply dexpreopt is:
#
# <temp_dir>/
# framework_meta/
# META/
# vendor_meta/
# META/
# output/
# SYSTEM/
# VENDOR/
# IMAGES/
# <other items extracted from system and vendor target files>
# tools/
# <contents of dexpreopt_tools.zip>
# system_config/
# <contents of system dexpreopt_config.zip>
# vendor_config/
# <contents of vendor dexpreopt_config.zip>
# system -> output/SYSTEM
# vendor -> output/VENDOR
# apex/ (extracted updatable APEX)
# <apex 1>/
# ...
# <apex 2>/
# ...
# ...
# out/dex2oat_result/vendor/
# <app>
# oat/arm64/
# package.vdex
# package.odex
# <priv-app>
# oat/arm64/
# package.vdex
# package.odex
dexpreopt_tools_files_temp_dir = os.path.join(temp_dir, 'tools')
dexpreopt_framework_config_files_temp_dir = os.path.join(
temp_dir, 'system_config')
dexpreopt_vendor_config_files_temp_dir = os.path.join(temp_dir,
'vendor_config')
merge_utils.ExtractItems(
input_zip=OPTIONS.framework_dexpreopt_tools,
output_dir=dexpreopt_tools_files_temp_dir,
extract_item_list=('*',))
merge_utils.ExtractItems(
input_zip=OPTIONS.framework_dexpreopt_config,
output_dir=dexpreopt_framework_config_files_temp_dir,
extract_item_list=('*',))
merge_utils.ExtractItems(
input_zip=OPTIONS.vendor_dexpreopt_config,
output_dir=dexpreopt_vendor_config_files_temp_dir,
extract_item_list=('*',))
os.symlink(
os.path.join(output_target_files_dir, 'SYSTEM'),
os.path.join(temp_dir, 'system'))
os.symlink(
os.path.join(output_target_files_dir, 'VENDOR'),
os.path.join(temp_dir, 'vendor'))
# Extract APEX.
logging.info('extracting APEX')
apex_extract_root_dir = os.path.join(temp_dir, 'apex')
os.makedirs(apex_extract_root_dir)
command = [
'apexd_host',
'--system_path',
os.path.join(temp_dir, 'system'),
'--apex_path',
apex_extract_root_dir,
]
logging.info(' running %s', command)
subprocess.check_call(command)
# Modify system config to point to the tools that have been extracted.
# Absolute or .. paths are not allowed by the dexpreopt_gen tool in
# dexpreopt_soong.config.
dexpreopt_framework_soon_config = os.path.join(
dexpreopt_framework_config_files_temp_dir, 'dexpreopt_soong.config')
with open(dexpreopt_framework_soon_config, 'w') as f:
dexpreopt_soong_config = {
'Profman': 'tools/profman',
'Dex2oat': 'tools/dex2oatd',
'Aapt': 'tools/aapt2',
'SoongZip': 'tools/soong_zip',
'Zip2zip': 'tools/zip2zip',
'ManifestCheck': 'tools/manifest_check',
'ConstructContext': 'tools/construct_context',
}
json.dump(dexpreopt_soong_config, f)
# TODO(b/188179859): Make *dex location configurable to vendor or system_other.
use_system_other_odex = False
if use_system_other_odex:
dex_img = 'SYSTEM_OTHER'
else:
dex_img = 'VENDOR'
# Open vendor_filesystem_config to append the items generated by dexopt.
vendor_file_system_config = open(
os.path.join(temp_dir, 'output', 'META',
'vendor_filesystem_config.txt'), 'a')
# Dexpreopt vendor apps.
dexpreopt_config_suffix = '_dexpreopt.config'
for config in glob.glob(
os.path.join(dexpreopt_vendor_config_files_temp_dir,
'*' + dexpreopt_config_suffix)):
app = os.path.basename(config)[:-len(dexpreopt_config_suffix)]
logging.info('dexpreopt config: %s %s', config, app)
apk_dir = 'app'
apk_path = os.path.join(temp_dir, 'vendor', apk_dir, app, app + '.apk')
if not os.path.exists(apk_path):
apk_dir = 'priv-app'
apk_path = os.path.join(temp_dir, 'vendor', apk_dir, app, app + '.apk')
if not os.path.exists(apk_path):
logging.warning(
'skipping dexpreopt for %s, no apk found in vendor/app '
'or vendor/priv-app', app)
continue
# Generate dexpreopting script. Note 'out_dir' is not the output directory
# where the script is generated, but the OUT_DIR at build time referenced
# in the dexpreot config files, e.g., "out/.../core-oj.jar", so the tool knows
# how to adjust the path.
command = [
os.path.join(dexpreopt_tools_files_temp_dir, 'dexpreopt_gen'),
'-global',
os.path.join(dexpreopt_framework_config_files_temp_dir,
'dexpreopt.config'),
'-global_soong',
os.path.join(dexpreopt_framework_config_files_temp_dir,
'dexpreopt_soong.config'),
'-module',
config,
'-dexpreopt_script',
'dexpreopt_app.sh',
'-out_dir',
'out',
'-base_path',
'.',
'--uses_target_files',
]
# Run the command from temp_dir so all tool paths are its descendants.
logging.info('running %s', command)
subprocess.check_call(command, cwd=temp_dir)
# Call the generated script.
command = ['sh', 'dexpreopt_app.sh', apk_path]
logging.info('running %s', command)
subprocess.check_call(command, cwd=temp_dir)
# Output files are in:
#
# <temp_dir>/out/dex2oat_result/vendor/priv-app/<app>/oat/arm64/package.vdex
# <temp_dir>/out/dex2oat_result/vendor/priv-app/<app>/oat/arm64/package.odex
# <temp_dir>/out/dex2oat_result/vendor/app/<app>/oat/arm64/package.vdex
# <temp_dir>/out/dex2oat_result/vendor/app/<app>/oat/arm64/package.odex
#
# Copy the files to their destination. The structure of system_other is:
#
# system_other/
# system-other-odex-marker
# system/
# app/
# <app>/oat/arm64/
# <app>.odex
# <app>.vdex
# ...
# priv-app/
# <app>/oat/arm64/
# <app>.odex
# <app>.vdex
# ...
# TODO(b/188179859): Support for other architectures.
arch = 'arm64'
dex_destination = os.path.join(temp_dir, 'output', dex_img, apk_dir, app,
'oat', arch)
os.makedirs(dex_destination)
dex2oat_path = os.path.join(temp_dir, 'out', 'dex2oat_result', 'vendor',
apk_dir, app, 'oat', arch)
shutil.copy(
os.path.join(dex2oat_path, 'package.vdex'),
os.path.join(dex_destination, app + '.vdex'))
shutil.copy(
os.path.join(dex2oat_path, 'package.odex'),
os.path.join(dex_destination, app + '.odex'))
# Append entries to vendor_file_system_config.txt, such as:
#
# vendor/app/<app>/oat 0 2000 755 selabel=u:object_r:vendor_app_file:s0 capabilities=0x0
# vendor/app/<app>/oat/arm64 0 2000 755 selabel=u:object_r:vendor_app_file:s0 capabilities=0x0
# vendor/app/<app>/oat/arm64/<app>.odex 0 0 644 selabel=u:object_r:vendor_app_file:s0 capabilities=0x0
# vendor/app/<app>/oat/arm64/<app>.vdex 0 0 644 selabel=u:object_r:vendor_app_file:s0 capabilities=0x0
if not use_system_other_odex:
vendor_app_prefix = 'vendor/' + apk_dir + '/' + app + '/oat'
selabel = 'selabel=u:object_r:vendor_app_file:s0 capabilities=0x0'
vendor_file_system_config.writelines([
vendor_app_prefix + ' 0 2000 755 ' + selabel + '\n',
vendor_app_prefix + '/' + arch + ' 0 2000 755 ' + selabel + '\n',
vendor_app_prefix + '/' + arch + '/' + app + '.odex 0 0 644 ' +
selabel + '\n',
vendor_app_prefix + '/' + arch + '/' + app + '.vdex 0 0 644 ' +
selabel + '\n',
])
if not use_system_other_odex:
vendor_file_system_config.close()
# Delete vendor.img so that it will be regenerated.
# TODO(b/188179859): Rebuilding a vendor image in GRF mode (e.g., T(framework)
# and S(vendor) may require logic similar to that in
# rebuild_image_with_sepolicy.
vendor_img = os.path.join(output_target_files_dir, 'IMAGES', 'vendor.img')
if os.path.exists(vendor_img):
logging.info('Deleting %s', vendor_img)
os.remove(vendor_img)