OVMS3-idf/components/partition_table/parttool.py
Angus Gratton 077469c823 partition_table: Support same fallback logic as bootloader for default boot partition
Generates correct "make flash" command even when partition table has no factory partition.

Also adds unit tests for parttool.py

Closes https://github.com/espressif/esp-idf/issues/2086
2018-06-22 11:14:22 +10:00

129 lines
4.3 KiB
Python
Executable file

#!/usr/bin/env python
#
# parttool returns info about the required partition.
#
# This utility is used by the make system to get information
# about the start addresses: partition table, factory area, phy area.
#
# Copyright 2018 Espressif Systems (Shanghai) PTE LTD
#
# 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.
from __future__ import print_function, division
import argparse
import os
import re
import struct
import sys
import hashlib
import binascii
import gen_esp32part as gen
__version__ = '1.0'
quiet = False
def status(msg):
""" Print status message to stderr """
if not quiet:
critical(msg)
def critical(msg):
""" Print critical message to stderr """
if not quiet:
sys.stderr.write(msg)
sys.stderr.write('\n')
def main():
global quiet
parser = argparse.ArgumentParser(description='Returns info about the required partition.')
parser.add_argument('--quiet', '-q', help="Don't print status messages to stderr", action='store_true')
search_type = parser.add_mutually_exclusive_group()
search_type.add_argument('--partition-name', '-p', help='The name of the required partition', type=str, default=None)
search_type.add_argument('--type', '-t', help='The type of the required partition', type=str, default=None)
search_type.add_argument('--default-boot-partition', help='Select the default boot partition, '+
'using the same fallback logic as the IDF bootloader', action="store_true")
parser.add_argument('--subtype', '-s', help='The subtype of the required partition', type=str, default=None)
parser.add_argument('--offset', '-o', help='Return offset of required partition', action="store_true")
parser.add_argument('--size', help='Return size of required partition', action="store_true")
parser.add_argument('input', help='Path to CSV or binary file to parse. Will use stdin if omitted.',
type=argparse.FileType('rb'), default=sys.stdin)
args = parser.parse_args()
if args.type is not None and args.subtype is None:
status("If --type is specified, --subtype is required")
return 2
if args.type is None and args.subtype is not None:
status("--subtype is only used with --type")
return 2
quiet = args.quiet
input = args.input.read()
input_is_binary = input[0:2] == gen.PartitionDefinition.MAGIC_BYTES
if input_is_binary:
status("Parsing binary partition input...")
table = gen.PartitionTable.from_binary(input)
else:
input = input.decode()
status("Parsing CSV input...")
table = gen.PartitionTable.from_csv(input)
found_partition = None
if args.default_boot_partition:
search = [ "factory" ] + [ "ota_%d" % d for d in range(16) ]
for subtype in search:
found_partition = table.find_by_type("app", subtype)
if found_partition is not None:
break
elif args.partition_name is not None:
found_partition = table.find_by_name(args.partition_name)
elif args.type is not None:
found_partition = table.find_by_type(args.type, args.subtype)
else:
raise RuntimeError("invalid partition selection choice")
if found_partition is None:
return 1 # nothing found
if args.offset:
print('0x%x ' % (found_partition.offset))
if args.size:
print('0x%x' % (found_partition.size))
return 0
class InputError(RuntimeError):
def __init__(self, e):
super(InputError, self).__init__(e)
class ValidationError(InputError):
def __init__(self, partition, message):
super(ValidationError, self).__init__(
"Partition %s invalid: %s" % (partition.name, message))
if __name__ == '__main__':
try:
r = main()
sys.exit(r)
except InputError as e:
print(e, file=sys.stderr)
sys.exit(2)