build: Split out mkfs in BuildImageMkfs
Separate out BuildImageMkfs from BuildImage, which just makes the filesystem without any verity, avb, or other decisions. BuildImage does all the wrapping for such. This will hopefully ease maintenance and drop the issues surrounding BuildImage reentrancy. Change right-size estimation path to use BuildImageMkfs, and do so without verity or avb wrappings. Test: build Bug: 111302946 Change-Id: I30e2e2b727f40ecca5164142f34139f5244f6424
This commit is contained in:
Mark Salyzyn
parent
41f781de9e
commit
2b72b7f01e
|
|
@ -221,8 +221,8 @@ def CheckHeadroom(ext4fs_output, prop_dict):
|
|||
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.
|
||||
def BuildImageMkfs(in_dir, prop_dict, out_file, target_out, fs_config):
|
||||
"""Builds a pure image for the files under in_dir and writes it to out_file.
|
||||
|
||||
Args:
|
||||
in_dir: Path to input directory.
|
||||
|
|
@ -233,81 +233,15 @@ def BuildImage(in_dir, prop_dict, out_file, target_out=None):
|
|||
points to the /system directory under PRODUCT_OUT. fs_config (the one
|
||||
under system/core/libcutils) reads device specific FS config files from
|
||||
there.
|
||||
fs_config: The fs_config file that drives the prototype
|
||||
|
||||
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
|
||||
|
||||
# Get a builder for creating an image that's to be verified by Verified Boot,
|
||||
# or None if not applicable.
|
||||
verity_image_builder = verity_utils.CreateVerityImageBuilder(prop_dict)
|
||||
|
||||
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)
|
||||
if fs_type.startswith("ext"):
|
||||
if verity_image_builder:
|
||||
size = verity_image_builder.CalculateDynamicPartitionSize(size)
|
||||
prop_dict["partition_size"] = str(size)
|
||||
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)
|
||||
os.remove(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)
|
||||
if verity_image_builder:
|
||||
size = verity_image_builder.CalculateDynamicPartitionSize(size)
|
||||
prop_dict["partition_size"] = str(size)
|
||||
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_image_builder:
|
||||
max_image_size = verity_image_builder.CalculateMaxImageSize()
|
||||
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:
|
||||
|
|
@ -400,8 +334,8 @@ def BuildImage(in_dir, prop_dict, out_file, target_out=None):
|
|||
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(
|
||||
"Out of space? Out of inodes? 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))
|
||||
|
|
@ -414,6 +348,102 @@ def BuildImage(in_dir, prop_dict, out_file, target_out=None):
|
|||
int(prop_dict["partition_size"]) // BYTES_IN_MB))
|
||||
raise
|
||||
|
||||
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]
|
||||
try:
|
||||
common.RunAndCheckOutput(e2fsck_command)
|
||||
finally:
|
||||
os.remove(unsparse_image)
|
||||
|
||||
|
||||
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.
|
||||
"""
|
||||
in_dir, fs_config = SetUpInDirAndFsConfig(in_dir, prop_dict)
|
||||
|
||||
build_command = []
|
||||
fs_type = prop_dict.get("fs_type", "")
|
||||
|
||||
fs_spans_partition = True
|
||||
if fs_type.startswith("squash"):
|
||||
fs_spans_partition = False
|
||||
|
||||
# Get a builder for creating an image that's to be verified by Verified Boot,
|
||||
# or None if not applicable.
|
||||
verity_image_builder = verity_utils.CreateVerityImageBuilder(prop_dict)
|
||||
|
||||
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)
|
||||
if fs_type.startswith("ext"):
|
||||
prop_dict["partition_size"] = str(size)
|
||||
prop_dict["image_size"] = str(size)
|
||||
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"])
|
||||
BuildImageMkfs(in_dir, prop_dict, out_file, target_out, fs_config)
|
||||
fs_dict = GetFilesystemCharacteristics(out_file)
|
||||
os.remove(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)
|
||||
if verity_image_builder:
|
||||
size = verity_image_builder.CalculateDynamicPartitionSize(size)
|
||||
prop_dict["partition_size"] = str(size)
|
||||
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_image_builder:
|
||||
max_image_size = verity_image_builder.CalculateMaxImageSize()
|
||||
prop_dict["image_size"] = str(max_image_size)
|
||||
|
||||
BuildImageMkfs(in_dir, prop_dict, out_file, target_out, fs_config)
|
||||
|
||||
# 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)
|
||||
|
|
@ -425,16 +455,6 @@ def BuildImage(in_dir, prop_dict, out_file, target_out=None):
|
|||
if verity_image_builder:
|
||||
verity_image_builder.Build(out_file)
|
||||
|
||||
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]
|
||||
try:
|
||||
common.RunAndCheckOutput(e2fsck_command)
|
||||
finally:
|
||||
os.remove(unsparse_image)
|
||||
|
||||
|
||||
def ImagePropFromGlobalDict(glob_dict, mount_point):
|
||||
"""Build an image property dictionary from the global dictionary.
|
||||
|
|
|
|||
Loading…
Reference in New Issue