07c71ac1b9
This is bad, python already prints exceptino message and exit with non-zero code when an exception is raised, no need to catch the exception just to print it. In addition, printing an exception does not print stacktrace, so catch + sys.exit provide less information than python's default behavior. Test: th Change-Id: If6cf2e34d4ebc9f7d172063b4396bf4377dad447
304 lines
11 KiB
Python
304 lines
11 KiB
Python
#!/usr/bin/env python
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#
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# Copyright (C) 2019 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""
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Check dynamic partition sizes.
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usage: check_partition_sizes [info.txt]
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Check dump-super-partitions-info procedure for expected keys in info.txt. In
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addition, *_image (e.g. system_image, vendor_image, etc.) must be defined for
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each partition in dynamic_partition_list.
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Exit code is 0 if successful and non-zero if any failures.
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"""
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from __future__ import print_function
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import logging
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import sys
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import common
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import sparse_img
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if sys.hexversion < 0x02070000:
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print("Python 2.7 or newer is required.", file=sys.stderr)
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sys.exit(1)
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logger = logging.getLogger(__name__)
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class Expression(object):
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def __init__(self, desc, expr, value=None):
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# Human-readable description
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self.desc = str(desc)
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# Numeric expression
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self.expr = str(expr)
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# Value of expression
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self.value = int(expr) if value is None else value
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def CheckLe(self, other, level=logging.ERROR):
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format_args = (self.desc, other.desc, self.expr, self.value,
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other.expr, other.value)
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if self.value <= other.value:
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logger.info("%s is less than or equal to %s:\n%s == %d <= %s == %d",
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*format_args)
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else:
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msg = "{} is greater than {}:\n{} == {} > {} == {}".format(*format_args)
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if level == logging.ERROR:
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raise RuntimeError(msg)
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else:
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logger.log(level, msg)
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def CheckLt(self, other, level=logging.ERROR):
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format_args = (self.desc, other.desc, self.expr, self.value,
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other.expr, other.value)
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if self.value < other.value:
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logger.info("%s is less than %s:\n%s == %d < %s == %d",
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*format_args)
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else:
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msg = "{} is greater than or equal to {}:\n{} == {} >= {} == {}".format(
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*format_args)
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if level == logging.ERROR:
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raise RuntimeError(msg)
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else:
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logger.log(level, msg)
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def CheckEq(self, other):
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format_args = (self.desc, other.desc, self.expr, self.value,
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other.expr, other.value)
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if self.value == other.value:
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logger.info("%s equals %s:\n%s == %d == %s == %d", *format_args)
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else:
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raise RuntimeError("{} does not equal {}:\n{} == {} != {} == {}".format(
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*format_args))
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# A/B feature flags
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class DeviceType(object):
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NONE = 0
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AB = 1
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RVAB = 2 # retrofit Virtual-A/B
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VAB = 3
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@staticmethod
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def Get(info_dict):
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if info_dict.get("ab_update") != "true":
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return DeviceType.NONE
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if info_dict.get("virtual_ab_retrofit") == "true":
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return DeviceType.RVAB
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if info_dict.get("virtual_ab") == "true":
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return DeviceType.VAB
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return DeviceType.AB
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# Dynamic partition feature flags
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class Dap(object):
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NONE = 0
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RDAP = 1
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DAP = 2
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@staticmethod
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def Get(info_dict):
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if info_dict.get("use_dynamic_partitions") != "true":
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return Dap.NONE
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if info_dict.get("dynamic_partition_retrofit") == "true":
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return Dap.RDAP
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return Dap.DAP
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class DynamicPartitionSizeChecker(object):
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def __init__(self, info_dict):
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if "super_partition_size" in info_dict:
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if "super_partition_warn_limit" not in info_dict:
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info_dict["super_partition_warn_limit"] = \
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int(info_dict["super_partition_size"]) * 95 // 100
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if "super_partition_error_limit" not in info_dict:
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info_dict["super_partition_error_limit"] = \
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int(info_dict["super_partition_size"])
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self.info_dict = info_dict
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def _ReadSizeOfPartition(self, name):
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# Tests uses *_image_size instead (to avoid creating empty sparse images
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# on disk)
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if name + "_image_size" in self.info_dict:
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return int(self.info_dict[name + "_image_size"])
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return sparse_img.GetImagePartitionSize(self.info_dict[name + "_image"])
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# Round result to BOARD_SUPER_PARTITION_ALIGNMENT
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def _RoundPartitionSize(self, size):
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alignment = self.info_dict.get("super_partition_alignment")
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if alignment is None:
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return size
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return (size + alignment - 1) // alignment * alignment
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def _CheckSuperPartitionSize(self):
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info_dict = self.info_dict
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super_block_devices = \
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info_dict.get("super_block_devices", "").strip().split()
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size_list = [int(info_dict.get("super_{}_device_size".format(b), "0"))
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for b in super_block_devices]
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sum_size = Expression("sum of super partition block device sizes",
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"+".join(str(size) for size in size_list),
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sum(size_list))
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super_partition_size = Expression("BOARD_SUPER_PARTITION_SIZE",
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info_dict["super_partition_size"])
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sum_size.CheckEq(super_partition_size)
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def _CheckSumOfPartitionSizes(self, max_size, partition_names,
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warn_size=None, error_size=None):
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partition_size_list = [self._RoundPartitionSize(
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self._ReadSizeOfPartition(p)) for p in partition_names]
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sum_size = Expression("sum of sizes of {}".format(partition_names),
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"+".join(str(size) for size in partition_size_list),
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sum(partition_size_list))
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sum_size.CheckLe(max_size)
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if error_size:
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sum_size.CheckLe(error_size)
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if warn_size:
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sum_size.CheckLe(warn_size, level=logging.WARNING)
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def _NumDeviceTypesInSuper(self):
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slot = DeviceType.Get(self.info_dict)
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dap = Dap.Get(self.info_dict)
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if dap == Dap.NONE:
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raise RuntimeError("check_partition_sizes should only be executed on "
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"builds with dynamic partitions enabled")
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# Retrofit dynamic partitions: 1 slot per "super", 2 "super"s on the device
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if dap == Dap.RDAP:
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if slot != DeviceType.AB:
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raise RuntimeError("Device with retrofit dynamic partitions must use "
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"regular (non-Virtual) A/B")
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return 1
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# Launch DAP: 1 super on the device
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assert dap == Dap.DAP
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# DAP + A/B: 2 slots in super
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if slot == DeviceType.AB:
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return 2
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# DAP + retrofit Virtual A/B: same as A/B
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if slot == DeviceType.RVAB:
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return 2
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# DAP + Launch Virtual A/B: 1 *real* slot in super (2 virtual slots)
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if slot == DeviceType.VAB:
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return 1
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# DAP + non-A/B: 1 slot in super
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assert slot == DeviceType.NONE
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return 1
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def _CheckAllPartitionSizes(self):
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info_dict = self.info_dict
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num_slots = self._NumDeviceTypesInSuper()
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size_limit_suffix = (" / %d" % num_slots) if num_slots > 1 else ""
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# Check sum(all partitions) <= super partition (/ 2 for A/B devices launched
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# with dynamic partitions)
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if "super_partition_size" in info_dict and \
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"dynamic_partition_list" in info_dict:
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max_size = Expression(
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"BOARD_SUPER_PARTITION_SIZE{}".format(size_limit_suffix),
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int(info_dict["super_partition_size"]) // num_slots)
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warn_limit = Expression(
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"BOARD_SUPER_PARTITION_WARN_LIMIT{}".format(size_limit_suffix),
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int(info_dict["super_partition_warn_limit"]) // num_slots)
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error_limit = Expression(
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"BOARD_SUPER_PARTITION_ERROR_LIMIT{}".format(size_limit_suffix),
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int(info_dict["super_partition_error_limit"]) // num_slots)
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partitions_in_super = info_dict["dynamic_partition_list"].strip().split()
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# In the vab case, factory OTA will allocate space on super to install
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# the system_other partition. So add system_other to the partition list.
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if DeviceType.Get(self.info_dict) == DeviceType.VAB and (
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"system_other_image" in info_dict or
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"system_other_image_size" in info_dict):
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partitions_in_super.append("system_other")
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self._CheckSumOfPartitionSizes(max_size, partitions_in_super,
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warn_limit, error_limit)
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groups = info_dict.get("super_partition_groups", "").strip().split()
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# For each group, check sum(partitions in group) <= group size
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for group in groups:
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if "super_{}_group_size".format(group) in info_dict and \
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"super_{}_partition_list".format(group) in info_dict:
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group_size = Expression(
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"BOARD_{}_SIZE".format(group),
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int(info_dict["super_{}_group_size".format(group)]))
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self._CheckSumOfPartitionSizes(
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group_size,
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info_dict["super_{}_partition_list".format(group)].strip().split())
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# Check sum(all group sizes) <= super partition (/ 2 for A/B devices
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# launched with dynamic partitions)
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if "super_partition_size" in info_dict:
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group_size_list = [int(info_dict.get(
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"super_{}_group_size".format(group), 0)) for group in groups]
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sum_size = Expression("sum of sizes of {}".format(groups),
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"+".join(str(size) for size in group_size_list),
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sum(group_size_list))
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max_size = Expression(
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"BOARD_SUPER_PARTITION_SIZE{}".format(size_limit_suffix),
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int(info_dict["super_partition_size"]) // num_slots)
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# Retrofit DAP will build metadata as part of super image.
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if Dap.Get(info_dict) == Dap.RDAP:
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sum_size.CheckLe(max_size)
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return
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sum_size.CheckLt(max_size)
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# Display a warning if group size + 1M >= super size
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minimal_metadata_size = 1024 * 1024 # 1MiB
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sum_size_plus_metadata = Expression(
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"sum of sizes of {} plus 1M metadata".format(groups),
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"+".join(str(size) for size in
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group_size_list + [minimal_metadata_size]),
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sum(group_size_list) + minimal_metadata_size)
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sum_size_plus_metadata.CheckLe(max_size, level=logging.WARNING)
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def Run(self):
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self._CheckAllPartitionSizes()
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if self.info_dict.get("dynamic_partition_retrofit") == "true":
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self._CheckSuperPartitionSize()
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def CheckPartitionSizes(inp):
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if isinstance(inp, str):
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info_dict = common.LoadDictionaryFromFile(inp)
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return DynamicPartitionSizeChecker(info_dict).Run()
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if isinstance(inp, dict):
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return DynamicPartitionSizeChecker(inp).Run()
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raise ValueError("{} is not a dictionary or a valid path".format(inp))
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def main(argv):
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args = common.ParseOptions(argv, __doc__)
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if len(args) != 1:
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common.Usage(__doc__)
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sys.exit(1)
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common.InitLogging()
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CheckPartitionSizes(args[0])
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if __name__ == "__main__":
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try:
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common.CloseInheritedPipes()
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main(sys.argv[1:])
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finally:
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common.Cleanup()
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