117 lines
4.3 KiB
Python
117 lines
4.3 KiB
Python
#! /usr/bin/env python3
|
|
#
|
|
# Copyright 2017 Linaro Limited
|
|
# Copyright (c) 2017-2019, Arm Limited.
|
|
#
|
|
# 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.
|
|
|
|
"""
|
|
Assemble multiple images into a single image that can be flashed on the device.
|
|
"""
|
|
|
|
import argparse
|
|
import errno
|
|
import io
|
|
import re
|
|
import os
|
|
import shutil
|
|
import macro_parser
|
|
|
|
offset_re = re.compile(r"^.*\s*RE_([0-9A-Z_]+)_OFFSET\s*(.*)")
|
|
|
|
class Assembly():
|
|
def __init__(self, config_path, output):
|
|
self.output = output
|
|
self.config_path = config_path
|
|
self.first_offset = -1
|
|
self.overwrite = 0
|
|
self.find_slots()
|
|
try:
|
|
os.unlink(output)
|
|
except OSError as e:
|
|
if e.errno != errno.ENOENT:
|
|
raise
|
|
|
|
def find_slots(self):
|
|
self.offsets = macro_parser.evaluate_macro(self.config_path, offset_re, 1, 2)
|
|
|
|
def add_image(self, source, partition):
|
|
if self.first_offset == -1:
|
|
self.first_offset = self.offsets[partition]
|
|
offset = self.offsets[partition] - self.first_offset
|
|
if offset < 0:
|
|
raise Exception("Partitions not in order, unsupported")
|
|
print("partition = " , partition ," offset = " , offset)
|
|
with open(self.output, 'ab') as ofd:
|
|
#ofd.seek(0, os.SEEK_END)
|
|
pos = ofd.tell()
|
|
if pos > offset:
|
|
if self.overwrite:
|
|
ofd.seek((offset - pos), os.SEEK_CUR)
|
|
else:
|
|
raise Exception("Partitions not in order, unsupported")
|
|
if pos < offset:
|
|
ofd.write(b'\xFF' * (offset - pos))
|
|
with open(source, 'rb') as rfd:
|
|
shutil.copyfileobj(rfd, ofd, 0x10000) #"0x10000 means buffer size"
|
|
|
|
def main():
|
|
parser = argparse.ArgumentParser()
|
|
|
|
parser.add_argument('--config', required=True,
|
|
help='Location of the file that contains preprocessed macros')
|
|
parser.add_argument('--sys_set', help='System Settings')
|
|
parser.add_argument('--mbl', help='Main Boot Loader')
|
|
parser.add_argument('--sys_status', help='System Status')
|
|
parser.add_argument('--prot_0', help='PSA Root of Image 0')
|
|
parser.add_argument('--arot_0', help='Application ROOT of Image 0')
|
|
parser.add_argument('--nspe_0', help='Non Secure Application of Image 0')
|
|
parser.add_argument('--prot_1', help='PSA Root of Image 1')
|
|
parser.add_argument('--arot_1', help='Application ROOT of Image 1')
|
|
parser.add_argument('--nspe_1', help='Non Secure Application of Image 1')
|
|
parser.add_argument('--user_1', help='User data 1')
|
|
parser.add_argument('--user_2', help='User data 2')
|
|
parser.add_argument('--overwrite', help='Allow to overwrite data')
|
|
parser.add_argument('-o', '--output', required=True,
|
|
help='Filename to write full image to')
|
|
|
|
args = parser.parse_args()
|
|
output = Assembly(args.config, args.output)
|
|
if args.overwrite:
|
|
output.overwrite = 1
|
|
if args.sys_set:
|
|
output.add_image(args.sys_set, "SYS_SET")
|
|
if args.mbl:
|
|
output.add_image(args.mbl, "MBL")
|
|
if args.sys_status:
|
|
output.add_image(args.sys_status, "SYS_STATUS")
|
|
if args.prot_0:
|
|
output.add_image(args.prot_0, "IMG_0_PROT")
|
|
if args.arot_0:
|
|
output.add_image(args.arot_0, "IMG_0_AROT")
|
|
if args.nspe_0:
|
|
output.add_image(args.nspe_0, "IMG_0_NSPE")
|
|
if args.prot_1:
|
|
output.add_image(args.prot_1, "IMG_1_PROT")
|
|
if args.arot_1:
|
|
output.add_image(args.arot_1, "IMG_1_AROT")
|
|
if args.nspe_1:
|
|
output.add_image(args.nspe_1, "IMG_1_NSPE")
|
|
if args.user_1:
|
|
output.add_image(args.user_1, "USER_1")
|
|
if args.user_2:
|
|
output.add_image(args.user_2, "USER_2")
|
|
|
|
if __name__ == '__main__':
|
|
main()
|