| #!/usr/bin/env python |
| # |
| # Copyright (C) 2011 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. |
| |
| """ |
| Builds output_image from the given input_directory, properties_file, |
| and writes the image to target_output_directory. |
| |
| If argument generated_prop_file exists, write additional properties to the file. |
| |
| Usage: build_image.py input_directory properties_file output_image \\ |
| target_output_directory [generated_prop_file] |
| """ |
| |
| from __future__ import print_function |
| |
| import logging |
| import os |
| import os.path |
| import re |
| import shutil |
| import sys |
| |
| import common |
| import verity_utils |
| |
| logger = logging.getLogger(__name__) |
| |
| OPTIONS = common.OPTIONS |
| BLOCK_SIZE = common.BLOCK_SIZE |
| BYTES_IN_MB = 1024 * 1024 |
| |
| |
| class BuildImageError(Exception): |
| """An Exception raised during image building.""" |
| |
| def __init__(self, message): |
| Exception.__init__(self, message) |
| |
| |
| def GetDiskUsage(path): |
| """Returns the number of bytes that "path" occupies on host. |
| |
| Args: |
| path: The directory or file to calculate size on. |
| |
| Returns: |
| The number of bytes based on a 1K block_size. |
| """ |
| cmd = ["du", "-k", "-s", path] |
| output = common.RunAndCheckOutput(cmd, verbose=False) |
| return int(output.split()[0]) * 1024 |
| |
| |
| def GetInodeUsage(path): |
| """Returns the number of inodes that "path" occupies on host. |
| |
| Args: |
| path: The directory or file to calculate inode number on. |
| |
| Returns: |
| The number of inodes used. |
| """ |
| cmd = ["find", path, "-print"] |
| output = common.RunAndCheckOutput(cmd, verbose=False) |
| # increase by > 4% as number of files and directories is not whole picture. |
| return output.count('\n') * 25 // 24 |
| |
| |
| def GetFilesystemCharacteristics(sparse_image_path): |
| """Returns various filesystem characteristics of "sparse_image_path". |
| |
| Args: |
| sparse_image_path: The file to analyze. |
| |
| Returns: |
| The characteristics dictionary. |
| """ |
| unsparse_image_path = UnsparseImage(sparse_image_path, replace=False) |
| |
| cmd = ["tune2fs", "-l", unsparse_image_path] |
| try: |
| output = common.RunAndCheckOutput(cmd, verbose=False) |
| finally: |
| os.remove(unsparse_image_path) |
| fs_dict = {} |
| for line in output.splitlines(): |
| fields = line.split(":") |
| if len(fields) == 2: |
| fs_dict[fields[0].strip()] = fields[1].strip() |
| return fs_dict |
| |
| |
| def UnsparseImage(sparse_image_path, replace=True): |
| img_dir = os.path.dirname(sparse_image_path) |
| unsparse_image_path = "unsparse_" + os.path.basename(sparse_image_path) |
| unsparse_image_path = os.path.join(img_dir, unsparse_image_path) |
| if os.path.exists(unsparse_image_path): |
| if replace: |
| os.unlink(unsparse_image_path) |
| else: |
| return unsparse_image_path |
| inflate_command = ["simg2img", sparse_image_path, unsparse_image_path] |
| try: |
| common.RunAndCheckOutput(inflate_command) |
| except: |
| os.remove(unsparse_image_path) |
| raise |
| return unsparse_image_path |
| |
| |
| def ConvertBlockMapToBaseFs(block_map_file): |
| base_fs_file = common.MakeTempFile(prefix="script_gen_", suffix=".base_fs") |
| convert_command = ["blk_alloc_to_base_fs", block_map_file, base_fs_file] |
| common.RunAndCheckOutput(convert_command) |
| return base_fs_file |
| |
| |
| def SetUpInDirAndFsConfig(origin_in, prop_dict): |
| """Returns the in_dir and fs_config that should be used for image building. |
| |
| When building system.img for all targets, it creates and returns a staged dir |
| that combines the contents of /system (i.e. in the given in_dir) and root. |
| |
| Args: |
| origin_in: Path to the input directory. |
| prop_dict: A property dict that contains info like partition size. Values |
| may be updated. |
| |
| Returns: |
| A tuple of in_dir and fs_config that should be used to build the image. |
| """ |
| fs_config = prop_dict.get("fs_config") |
| |
| if prop_dict["mount_point"] == "system_other": |
| prop_dict["mount_point"] = "system" |
| return origin_in, fs_config |
| |
| if prop_dict["mount_point"] != "system": |
| return origin_in, fs_config |
| |
| if "first_pass" in prop_dict: |
| prop_dict["mount_point"] = "/" |
| return prop_dict["first_pass"] |
| |
| # Construct a staging directory of the root file system. |
| in_dir = common.MakeTempDir() |
| root_dir = prop_dict.get("root_dir") |
| if root_dir: |
| shutil.rmtree(in_dir) |
| shutil.copytree(root_dir, in_dir, symlinks=True) |
| in_dir_system = os.path.join(in_dir, "system") |
| shutil.rmtree(in_dir_system, ignore_errors=True) |
| shutil.copytree(origin_in, in_dir_system, symlinks=True) |
| |
| # Change the mount point to "/". |
| prop_dict["mount_point"] = "/" |
| if fs_config: |
| # We need to merge the fs_config files of system and root. |
| merged_fs_config = common.MakeTempFile( |
| prefix="merged_fs_config", suffix=".txt") |
| with open(merged_fs_config, "w") as fw: |
| if "root_fs_config" in prop_dict: |
| with open(prop_dict["root_fs_config"]) as fr: |
| fw.writelines(fr.readlines()) |
| with open(fs_config) as fr: |
| fw.writelines(fr.readlines()) |
| fs_config = merged_fs_config |
| prop_dict["first_pass"] = (in_dir, fs_config) |
| return in_dir, fs_config |
| |
| |
| def CheckHeadroom(ext4fs_output, prop_dict): |
| """Checks if there's enough headroom space available. |
| |
| Headroom is the reserved space on system image (via PRODUCT_SYSTEM_HEADROOM), |
| which is useful for devices with low disk space that have system image |
| variation between builds. The 'partition_headroom' in prop_dict is the size |
| in bytes, while the numbers in 'ext4fs_output' are for 4K-blocks. |
| |
| Args: |
| ext4fs_output: The output string from mke2fs command. |
| prop_dict: The property dict. |
| |
| Raises: |
| AssertionError: On invalid input. |
| BuildImageError: On check failure. |
| """ |
| assert ext4fs_output is not None |
| assert prop_dict.get('fs_type', '').startswith('ext4') |
| assert 'partition_headroom' in prop_dict |
| assert 'mount_point' in prop_dict |
| |
| ext4fs_stats = re.compile( |
| r'Created filesystem with .* (?P<used_blocks>[0-9]+)/' |
| r'(?P<total_blocks>[0-9]+) blocks') |
| last_line = ext4fs_output.strip().split('\n')[-1] |
| m = ext4fs_stats.match(last_line) |
| used_blocks = int(m.groupdict().get('used_blocks')) |
| total_blocks = int(m.groupdict().get('total_blocks')) |
| headroom_blocks = int(prop_dict['partition_headroom']) // BLOCK_SIZE |
| adjusted_blocks = total_blocks - headroom_blocks |
| if used_blocks > adjusted_blocks: |
| mount_point = prop_dict["mount_point"] |
| raise BuildImageError( |
| "Error: Not enough room on {} (total: {} blocks, used: {} blocks, " |
| "headroom: {} blocks, available: {} blocks)".format( |
| mount_point, total_blocks, used_blocks, headroom_blocks, |
| adjusted_blocks)) |
| |
| |
| def BuildImage(in_dir, prop_dict, out_file, target_out=None): |
| """Builds an image for the files under in_dir and writes it to out_file. |
| |
| Args: |
| in_dir: Path to input directory. |
| prop_dict: A property dict that contains info like partition size. Values |
| will be updated with computed values. |
| out_file: The output image file. |
| target_out: Path to the TARGET_OUT directory as in Makefile. It actually |
| points to the /system directory under PRODUCT_OUT. fs_config (the one |
| under system/core/libcutils) reads device specific FS config files from |
| there. |
| |
| Raises: |
| BuildImageError: On build image failures. |
| """ |
| original_mount_point = prop_dict["mount_point"] |
| in_dir, fs_config = SetUpInDirAndFsConfig(in_dir, prop_dict) |
| |
| build_command = [] |
| fs_type = prop_dict.get("fs_type", "") |
| run_e2fsck = False |
| |
| fs_spans_partition = True |
| if fs_type.startswith("squash"): |
| fs_spans_partition = False |
| |
| is_verity_partition = "verity_block_device" in prop_dict |
| verity_supported = prop_dict.get("verity") == "true" |
| verity_fec_supported = prop_dict.get("verity_fec") == "true" |
| |
| avb_footer_type = None |
| if prop_dict.get("avb_hash_enable") == "true": |
| avb_footer_type = "hash" |
| elif prop_dict.get("avb_hashtree_enable") == "true": |
| avb_footer_type = "hashtree" |
| |
| if avb_footer_type: |
| avbtool = prop_dict.get("avb_avbtool") |
| avb_signing_args = prop_dict.get( |
| "avb_add_" + avb_footer_type + "_footer_args") |
| |
| if (prop_dict.get("use_dynamic_partition_size") == "true" and |
| "partition_size" not in prop_dict): |
| # If partition_size is not defined, use output of `du' + reserved_size. |
| size = GetDiskUsage(in_dir) |
| logger.info( |
| "The tree size of %s is %d MB.", in_dir, size // BYTES_IN_MB) |
| # If not specified, give us 16MB margin for GetDiskUsage error ... |
| size += int(prop_dict.get("partition_reserved_size", BYTES_IN_MB * 16)) |
| # Round this up to a multiple of 4K so that avbtool works |
| size = common.RoundUpTo4K(size) |
| # Adjust partition_size to add more space for AVB footer, to prevent |
| # it from consuming partition_reserved_size. |
| if avb_footer_type: |
| size = verity_utils.AVBCalcMinPartitionSize( |
| size, |
| lambda x: verity_utils.AVBCalcMaxImageSize( |
| avbtool, avb_footer_type, x, avb_signing_args)) |
| prop_dict["partition_size"] = str(size) |
| if fs_type.startswith("ext"): |
| if "extfs_inode_count" not in prop_dict: |
| prop_dict["extfs_inode_count"] = str(GetInodeUsage(in_dir)) |
| logger.info( |
| "First Pass based on estimates of %d MB and %s inodes.", |
| size // BYTES_IN_MB, prop_dict["extfs_inode_count"]) |
| prop_dict["mount_point"] = original_mount_point |
| BuildImage(in_dir, prop_dict, out_file, target_out) |
| fs_dict = GetFilesystemCharacteristics(out_file) |
| block_size = int(fs_dict.get("Block size", "4096")) |
| free_size = int(fs_dict.get("Free blocks", "0")) * block_size |
| reserved_size = int(prop_dict.get("partition_reserved_size", 0)) |
| if free_size <= reserved_size: |
| logger.info( |
| "Not worth reducing image %d <= %d.", free_size, reserved_size) |
| else: |
| size -= free_size |
| size += reserved_size |
| if block_size <= 4096: |
| size = common.RoundUpTo4K(size) |
| else: |
| size = ((size + block_size - 1) // block_size) * block_size |
| extfs_inode_count = prop_dict["extfs_inode_count"] |
| inodes = int(fs_dict.get("Inode count", extfs_inode_count)) |
| inodes -= int(fs_dict.get("Free inodes", "0")) |
| prop_dict["extfs_inode_count"] = str(inodes) |
| prop_dict["partition_size"] = str(size) |
| logger.info( |
| "Allocating %d Inodes for %s.", inodes, out_file) |
| logger.info( |
| "Allocating %d MB for %s.", size // BYTES_IN_MB, out_file) |
| |
| prop_dict["image_size"] = prop_dict["partition_size"] |
| |
| # Adjust the image size to make room for the hashes if this is to be verified. |
| if verity_supported and is_verity_partition: |
| partition_size = int(prop_dict.get("partition_size")) |
| image_size, verity_size = verity_utils.AdjustPartitionSizeForVerity( |
| partition_size, verity_fec_supported) |
| prop_dict["image_size"] = str(image_size) |
| prop_dict["verity_size"] = str(verity_size) |
| |
| # Adjust the image size for AVB hash footer or AVB hashtree footer. |
| if avb_footer_type: |
| partition_size = prop_dict["partition_size"] |
| # avb_add_hash_footer_args or avb_add_hashtree_footer_args. |
| max_image_size = verity_utils.AVBCalcMaxImageSize( |
| avbtool, avb_footer_type, partition_size, avb_signing_args) |
| prop_dict["image_size"] = str(max_image_size) |
| |
| if fs_type.startswith("ext"): |
| build_command = [prop_dict["ext_mkuserimg"]] |
| if "extfs_sparse_flag" in prop_dict: |
| build_command.append(prop_dict["extfs_sparse_flag"]) |
| run_e2fsck = True |
| build_command.extend([in_dir, out_file, fs_type, |
| prop_dict["mount_point"]]) |
| build_command.append(prop_dict["image_size"]) |
| if "journal_size" in prop_dict: |
| build_command.extend(["-j", prop_dict["journal_size"]]) |
| if "timestamp" in prop_dict: |
| build_command.extend(["-T", str(prop_dict["timestamp"])]) |
| if fs_config: |
| build_command.extend(["-C", fs_config]) |
| if target_out: |
| build_command.extend(["-D", target_out]) |
| if "block_list" in prop_dict: |
| build_command.extend(["-B", prop_dict["block_list"]]) |
| if "base_fs_file" in prop_dict: |
| base_fs_file = ConvertBlockMapToBaseFs(prop_dict["base_fs_file"]) |
| build_command.extend(["-d", base_fs_file]) |
| build_command.extend(["-L", prop_dict["mount_point"]]) |
| if "extfs_inode_count" in prop_dict: |
| build_command.extend(["-i", prop_dict["extfs_inode_count"]]) |
| if "extfs_rsv_pct" in prop_dict: |
| build_command.extend(["-M", prop_dict["extfs_rsv_pct"]]) |
| if "flash_erase_block_size" in prop_dict: |
| build_command.extend(["-e", prop_dict["flash_erase_block_size"]]) |
| if "flash_logical_block_size" in prop_dict: |
| build_command.extend(["-o", prop_dict["flash_logical_block_size"]]) |
| # Specify UUID and hash_seed if using mke2fs. |
| if prop_dict["ext_mkuserimg"] == "mkuserimg_mke2fs": |
| if "uuid" in prop_dict: |
| build_command.extend(["-U", prop_dict["uuid"]]) |
| if "hash_seed" in prop_dict: |
| build_command.extend(["-S", prop_dict["hash_seed"]]) |
| if "ext4_share_dup_blocks" in prop_dict: |
| build_command.append("-c") |
| if "selinux_fc" in prop_dict: |
| build_command.append(prop_dict["selinux_fc"]) |
| elif fs_type.startswith("squash"): |
| build_command = ["mksquashfsimage.sh"] |
| build_command.extend([in_dir, out_file]) |
| if "squashfs_sparse_flag" in prop_dict: |
| build_command.extend([prop_dict["squashfs_sparse_flag"]]) |
| build_command.extend(["-m", prop_dict["mount_point"]]) |
| if target_out: |
| build_command.extend(["-d", target_out]) |
| if fs_config: |
| build_command.extend(["-C", fs_config]) |
| if "selinux_fc" in prop_dict: |
| build_command.extend(["-c", prop_dict["selinux_fc"]]) |
| if "block_list" in prop_dict: |
| build_command.extend(["-B", prop_dict["block_list"]]) |
| if "squashfs_block_size" in prop_dict: |
| build_command.extend(["-b", prop_dict["squashfs_block_size"]]) |
| if "squashfs_compressor" in prop_dict: |
| build_command.extend(["-z", prop_dict["squashfs_compressor"]]) |
| if "squashfs_compressor_opt" in prop_dict: |
| build_command.extend(["-zo", prop_dict["squashfs_compressor_opt"]]) |
| if prop_dict.get("squashfs_disable_4k_align") == "true": |
| build_command.extend(["-a"]) |
| elif fs_type.startswith("f2fs"): |
| build_command = ["mkf2fsuserimg.sh"] |
| build_command.extend([out_file, prop_dict["image_size"]]) |
| if fs_config: |
| build_command.extend(["-C", fs_config]) |
| build_command.extend(["-f", in_dir]) |
| if target_out: |
| build_command.extend(["-D", target_out]) |
| if "selinux_fc" in prop_dict: |
| build_command.extend(["-s", prop_dict["selinux_fc"]]) |
| build_command.extend(["-t", prop_dict["mount_point"]]) |
| if "timestamp" in prop_dict: |
| build_command.extend(["-T", str(prop_dict["timestamp"])]) |
| build_command.extend(["-L", prop_dict["mount_point"]]) |
| else: |
| raise BuildImageError( |
| "Error: unknown filesystem type: {}".format(fs_type)) |
| |
| try: |
| mkfs_output = common.RunAndCheckOutput(build_command) |
| except: |
| try: |
| du = GetDiskUsage(in_dir) |
| du_str = "{} bytes ({} MB)".format(du, du // BYTES_IN_MB) |
| # Suppress any errors from GetDiskUsage() to avoid hiding the real errors |
| # from common.RunAndCheckOutput(). |
| except Exception: # pylint: disable=broad-except |
| logger.exception("Failed to compute disk usage with du") |
| du_str = "unknown" |
| print( |
| "Out of space? The tree size of {} is {}, with reserved space of {} " |
| "bytes ({} MB).".format( |
| in_dir, du_str, |
| int(prop_dict.get("partition_reserved_size", 0)), |
| int(prop_dict.get("partition_reserved_size", 0)) // BYTES_IN_MB)) |
| print( |
| "The max image size for filesystem files is {} bytes ({} MB), out of a " |
| "total partition size of {} bytes ({} MB).".format( |
| int(prop_dict["image_size"]), |
| int(prop_dict["image_size"]) // BYTES_IN_MB, |
| int(prop_dict["partition_size"]), |
| int(prop_dict["partition_size"]) // BYTES_IN_MB)) |
| raise |
| |
| # Check if there's enough headroom space available for ext4 image. |
| if "partition_headroom" in prop_dict and fs_type.startswith("ext4"): |
| CheckHeadroom(mkfs_output, prop_dict) |
| |
| if not fs_spans_partition: |
| mount_point = prop_dict.get("mount_point") |
| image_size = int(prop_dict["image_size"]) |
| sparse_image_size = verity_utils.GetSimgSize(out_file) |
| if sparse_image_size > image_size: |
| raise BuildImageError( |
| "Error: {} image size of {} is larger than partition size of " |
| "{}".format(mount_point, sparse_image_size, image_size)) |
| if verity_supported and is_verity_partition: |
| verity_utils.ZeroPadSimg(out_file, image_size - sparse_image_size) |
| |
| # Create the verified image if this is to be verified. |
| if verity_supported and is_verity_partition: |
| verity_utils.MakeVerityEnabledImage( |
| out_file, verity_fec_supported, prop_dict) |
| |
| # Add AVB HASH or HASHTREE footer (metadata). |
| if avb_footer_type: |
| partition_size = prop_dict["partition_size"] |
| partition_name = prop_dict["partition_name"] |
| # key_path and algorithm are only available when chain partition is used. |
| key_path = prop_dict.get("avb_key_path") |
| algorithm = prop_dict.get("avb_algorithm") |
| salt = prop_dict.get("avb_salt") |
| verity_utils.AVBAddFooter( |
| out_file, avbtool, avb_footer_type, partition_size, partition_name, |
| key_path, algorithm, salt, avb_signing_args) |
| |
| if run_e2fsck and prop_dict.get("skip_fsck") != "true": |
| unsparse_image = UnsparseImage(out_file, replace=False) |
| |
| # Run e2fsck on the inflated image file |
| e2fsck_command = ["e2fsck", "-f", "-n", unsparse_image] |
| # TODO(b/112062612): work around e2fsck failure with SANITIZE_HOST=address |
| env4e2fsck = os.environ.copy() |
| env4e2fsck["ASAN_OPTIONS"] = "detect_odr_violation=0" |
| try: |
| common.RunAndCheckOutput(e2fsck_command, env=env4e2fsck) |
| finally: |
| os.remove(unsparse_image) |
| |
| |
| def ImagePropFromGlobalDict(glob_dict, mount_point): |
| """Build an image property dictionary from the global dictionary. |
| |
| Args: |
| glob_dict: the global dictionary from the build system. |
| mount_point: such as "system", "data" etc. |
| """ |
| d = {} |
| |
| if "build.prop" in glob_dict: |
| bp = glob_dict["build.prop"] |
| if "ro.build.date.utc" in bp: |
| d["timestamp"] = bp["ro.build.date.utc"] |
| |
| def copy_prop(src_p, dest_p): |
| """Copy a property from the global dictionary. |
| |
| Args: |
| src_p: The source property in the global dictionary. |
| dest_p: The destination property. |
| Returns: |
| True if property was found and copied, False otherwise. |
| """ |
| if src_p in glob_dict: |
| d[dest_p] = str(glob_dict[src_p]) |
| return True |
| return False |
| |
| common_props = ( |
| "extfs_sparse_flag", |
| "squashfs_sparse_flag", |
| "selinux_fc", |
| "skip_fsck", |
| "ext_mkuserimg", |
| "verity", |
| "verity_key", |
| "verity_signer_cmd", |
| "verity_fec", |
| "verity_disable", |
| "avb_enable", |
| "avb_avbtool", |
| "avb_salt", |
| "use_dynamic_partition_size", |
| ) |
| for p in common_props: |
| copy_prop(p, p) |
| |
| d["mount_point"] = mount_point |
| if mount_point == "system": |
| copy_prop("avb_system_hashtree_enable", "avb_hashtree_enable") |
| copy_prop("avb_system_add_hashtree_footer_args", |
| "avb_add_hashtree_footer_args") |
| copy_prop("avb_system_key_path", "avb_key_path") |
| copy_prop("avb_system_algorithm", "avb_algorithm") |
| copy_prop("fs_type", "fs_type") |
| # Copy the generic system fs type first, override with specific one if |
| # available. |
| copy_prop("system_fs_type", "fs_type") |
| copy_prop("system_headroom", "partition_headroom") |
| copy_prop("system_size", "partition_size") |
| if not copy_prop("system_journal_size", "journal_size"): |
| d["journal_size"] = "0" |
| copy_prop("system_verity_block_device", "verity_block_device") |
| copy_prop("system_root_image", "system_root_image") |
| copy_prop("root_dir", "root_dir") |
| copy_prop("root_fs_config", "root_fs_config") |
| copy_prop("ext4_share_dup_blocks", "ext4_share_dup_blocks") |
| copy_prop("system_squashfs_compressor", "squashfs_compressor") |
| copy_prop("system_squashfs_compressor_opt", "squashfs_compressor_opt") |
| copy_prop("system_squashfs_block_size", "squashfs_block_size") |
| copy_prop("system_squashfs_disable_4k_align", "squashfs_disable_4k_align") |
| copy_prop("system_base_fs_file", "base_fs_file") |
| copy_prop("system_extfs_inode_count", "extfs_inode_count") |
| if not copy_prop("system_extfs_rsv_pct", "extfs_rsv_pct"): |
| d["extfs_rsv_pct"] = "0" |
| copy_prop("system_reserved_size", "partition_reserved_size") |
| elif mount_point == "system_other": |
| # We inherit the selinux policies of /system since we contain some of its |
| # files. |
| copy_prop("avb_system_hashtree_enable", "avb_hashtree_enable") |
| copy_prop("avb_system_add_hashtree_footer_args", |
| "avb_add_hashtree_footer_args") |
| copy_prop("avb_system_key_path", "avb_key_path") |
| copy_prop("avb_system_algorithm", "avb_algorithm") |
| copy_prop("fs_type", "fs_type") |
| copy_prop("system_fs_type", "fs_type") |
| copy_prop("system_size", "partition_size") |
| if not copy_prop("system_journal_size", "journal_size"): |
| d["journal_size"] = "0" |
| copy_prop("system_verity_block_device", "verity_block_device") |
| copy_prop("system_squashfs_compressor", "squashfs_compressor") |
| copy_prop("system_squashfs_compressor_opt", "squashfs_compressor_opt") |
| copy_prop("system_squashfs_block_size", "squashfs_block_size") |
| copy_prop("system_base_fs_file", "base_fs_file") |
| copy_prop("system_extfs_inode_count", "extfs_inode_count") |
| if not copy_prop("system_extfs_rsv_pct", "extfs_rsv_pct"): |
| d["extfs_rsv_pct"] = "0" |
| copy_prop("system_reserved_size", "partition_reserved_size") |
| elif mount_point == "data": |
| # Copy the generic fs type first, override with specific one if available. |
| copy_prop("fs_type", "fs_type") |
| copy_prop("userdata_fs_type", "fs_type") |
| copy_prop("userdata_size", "partition_size") |
| copy_prop("flash_logical_block_size", "flash_logical_block_size") |
| copy_prop("flash_erase_block_size", "flash_erase_block_size") |
| elif mount_point == "cache": |
| copy_prop("cache_fs_type", "fs_type") |
| copy_prop("cache_size", "partition_size") |
| elif mount_point == "vendor": |
| copy_prop("avb_vendor_hashtree_enable", "avb_hashtree_enable") |
| copy_prop("avb_vendor_add_hashtree_footer_args", |
| "avb_add_hashtree_footer_args") |
| copy_prop("avb_vendor_key_path", "avb_key_path") |
| copy_prop("avb_vendor_algorithm", "avb_algorithm") |
| copy_prop("vendor_fs_type", "fs_type") |
| copy_prop("vendor_size", "partition_size") |
| if not copy_prop("vendor_journal_size", "journal_size"): |
| d["journal_size"] = "0" |
| copy_prop("vendor_verity_block_device", "verity_block_device") |
| copy_prop("ext4_share_dup_blocks", "ext4_share_dup_blocks") |
| copy_prop("vendor_squashfs_compressor", "squashfs_compressor") |
| copy_prop("vendor_squashfs_compressor_opt", "squashfs_compressor_opt") |
| copy_prop("vendor_squashfs_block_size", "squashfs_block_size") |
| copy_prop("vendor_squashfs_disable_4k_align", "squashfs_disable_4k_align") |
| copy_prop("vendor_base_fs_file", "base_fs_file") |
| copy_prop("vendor_extfs_inode_count", "extfs_inode_count") |
| if not copy_prop("vendor_extfs_rsv_pct", "extfs_rsv_pct"): |
| d["extfs_rsv_pct"] = "0" |
| copy_prop("vendor_reserved_size", "partition_reserved_size") |
| elif mount_point == "product": |
| copy_prop("avb_product_hashtree_enable", "avb_hashtree_enable") |
| copy_prop("avb_product_add_hashtree_footer_args", |
| "avb_add_hashtree_footer_args") |
| copy_prop("avb_product_key_path", "avb_key_path") |
| copy_prop("avb_product_algorithm", "avb_algorithm") |
| copy_prop("product_fs_type", "fs_type") |
| copy_prop("product_size", "partition_size") |
| if not copy_prop("product_journal_size", "journal_size"): |
| d["journal_size"] = "0" |
| copy_prop("product_verity_block_device", "verity_block_device") |
| copy_prop("product_squashfs_compressor", "squashfs_compressor") |
| copy_prop("product_squashfs_compressor_opt", "squashfs_compressor_opt") |
| copy_prop("product_squashfs_block_size", "squashfs_block_size") |
| copy_prop("product_squashfs_disable_4k_align", "squashfs_disable_4k_align") |
| copy_prop("product_base_fs_file", "base_fs_file") |
| copy_prop("product_extfs_inode_count", "extfs_inode_count") |
| if not copy_prop("product_extfs_rsv_pct", "extfs_rsv_pct"): |
| d["extfs_rsv_pct"] = "0" |
| copy_prop("product_reserved_size", "partition_reserved_size") |
| elif mount_point == "product_services": |
| copy_prop("avb_product_services_hashtree_enable", "avb_hashtree_enable") |
| copy_prop("avb_product_services_add_hashtree_footer_args", |
| "avb_add_hashtree_footer_args") |
| copy_prop("avb_product_services_key_path", "avb_key_path") |
| copy_prop("avb_product_services_algorithm", "avb_algorithm") |
| copy_prop("product_services_fs_type", "fs_type") |
| copy_prop("product_services_size", "partition_size") |
| if not copy_prop("product_services_journal_size", "journal_size"): |
| d["journal_size"] = "0" |
| copy_prop("product_services_verity_block_device", "verity_block_device") |
| copy_prop("product_services_squashfs_compressor", "squashfs_compressor") |
| copy_prop("product_services_squashfs_compressor_opt", |
| "squashfs_compressor_opt") |
| copy_prop("product_services_squashfs_block_size", "squashfs_block_size") |
| copy_prop("product_services_squashfs_disable_4k_align", |
| "squashfs_disable_4k_align") |
| copy_prop("product_services_base_fs_file", "base_fs_file") |
| copy_prop("product_services_extfs_inode_count", "extfs_inode_count") |
| if not copy_prop("product_services_extfs_rsv_pct", "extfs_rsv_pct"): |
| d["extfs_rsv_pct"] = "0" |
| copy_prop("product_services_reserved_size", "partition_reserved_size") |
| elif mount_point == "odm": |
| copy_prop("avb_odm_hashtree_enable", "avb_hashtree_enable") |
| copy_prop("avb_odm_add_hashtree_footer_args", |
| "avb_add_hashtree_footer_args") |
| copy_prop("avb_odm_key_path", "avb_key_path") |
| copy_prop("avb_odm_algorithm", "avb_algorithm") |
| copy_prop("odm_fs_type", "fs_type") |
| copy_prop("odm_size", "partition_size") |
| if not copy_prop("odm_journal_size", "journal_size"): |
| d["journal_size"] = "0" |
| copy_prop("odm_verity_block_device", "verity_block_device") |
| copy_prop("odm_squashfs_compressor", "squashfs_compressor") |
| copy_prop("odm_squashfs_compressor_opt", "squashfs_compressor_opt") |
| copy_prop("odm_squashfs_block_size", "squashfs_block_size") |
| copy_prop("odm_squashfs_disable_4k_align", "squashfs_disable_4k_align") |
| copy_prop("odm_base_fs_file", "base_fs_file") |
| copy_prop("odm_extfs_inode_count", "extfs_inode_count") |
| if not copy_prop("odm_extfs_rsv_pct", "extfs_rsv_pct"): |
| d["extfs_rsv_pct"] = "0" |
| copy_prop("odm_reserved_size", "partition_reserved_size") |
| elif mount_point == "oem": |
| copy_prop("fs_type", "fs_type") |
| copy_prop("oem_size", "partition_size") |
| if not copy_prop("oem_journal_size", "journal_size"): |
| d["journal_size"] = "0" |
| copy_prop("oem_extfs_inode_count", "extfs_inode_count") |
| if not copy_prop("oem_extfs_rsv_pct", "extfs_rsv_pct"): |
| d["extfs_rsv_pct"] = "0" |
| d["partition_name"] = mount_point |
| return d |
| |
| |
| def LoadGlobalDict(filename): |
| """Load "name=value" pairs from filename""" |
| d = {} |
| f = open(filename) |
| for line in f: |
| line = line.strip() |
| if not line or line.startswith("#"): |
| continue |
| k, v = line.split("=", 1) |
| d[k] = v |
| f.close() |
| return d |
| |
| |
| def GlobalDictFromImageProp(image_prop, mount_point): |
| d = {} |
| def copy_prop(src_p, dest_p): |
| if src_p in image_prop: |
| d[dest_p] = image_prop[src_p] |
| return True |
| return False |
| |
| if mount_point == "system": |
| copy_prop("partition_size", "system_size") |
| elif mount_point == "system_other": |
| copy_prop("partition_size", "system_size") |
| elif mount_point == "vendor": |
| copy_prop("partition_size", "vendor_size") |
| elif mount_point == "odm": |
| copy_prop("partition_size", "odm_size") |
| elif mount_point == "product": |
| copy_prop("partition_size", "product_size") |
| elif mount_point == "product_services": |
| copy_prop("partition_size", "product_services_size") |
| return d |
| |
| |
| def SaveGlobalDict(filename, glob_dict): |
| with open(filename, "w") as f: |
| f.writelines(["%s=%s" % (key, value) for (key, value) in glob_dict.items()]) |
| |
| |
| def main(argv): |
| if len(argv) < 4 or len(argv) > 5: |
| print(__doc__) |
| sys.exit(1) |
| |
| common.InitLogging() |
| |
| in_dir = argv[0] |
| glob_dict_file = argv[1] |
| out_file = argv[2] |
| target_out = argv[3] |
| prop_file_out = argv[4] if len(argv) >= 5 else None |
| |
| glob_dict = LoadGlobalDict(glob_dict_file) |
| if "mount_point" in glob_dict: |
| # The caller knows the mount point and provides a dictionary needed by |
| # BuildImage(). |
| image_properties = glob_dict |
| else: |
| image_filename = os.path.basename(out_file) |
| mount_point = "" |
| if image_filename == "system.img": |
| mount_point = "system" |
| elif image_filename == "system_other.img": |
| mount_point = "system_other" |
| elif image_filename == "userdata.img": |
| mount_point = "data" |
| elif image_filename == "cache.img": |
| mount_point = "cache" |
| elif image_filename == "vendor.img": |
| mount_point = "vendor" |
| elif image_filename == "odm.img": |
| mount_point = "odm" |
| elif image_filename == "oem.img": |
| mount_point = "oem" |
| elif image_filename == "product.img": |
| mount_point = "product" |
| elif image_filename == "product_services.img": |
| mount_point = "product_services" |
| else: |
| logger.error("Unknown image file name %s", image_filename) |
| sys.exit(1) |
| |
| image_properties = ImagePropFromGlobalDict(glob_dict, mount_point) |
| |
| try: |
| BuildImage(in_dir, image_properties, out_file, target_out) |
| except: |
| logger.error("Failed to build %s from %s", out_file, in_dir) |
| raise |
| |
| if prop_file_out: |
| glob_dict_out = GlobalDictFromImageProp(image_properties, mount_point) |
| SaveGlobalDict(prop_file_out, glob_dict_out) |
| |
| |
| if __name__ == '__main__': |
| try: |
| main(sys.argv[1:]) |
| finally: |
| common.Cleanup() |