scripts: add sign tool [1/1]
PD#SWPL-98728
Problem:
add sign tool.
Solution:
add sign tool.
Verify:
A113L_AD403
Signed-off-by: yang.li <yang.li@amlogic.com>
Change-Id: Id6cd1196eb66f9b650562092fc7ef80d1e2cdab6
diff --git a/sign_tool/assemble.py b/sign_tool/assemble.py
new file mode 100755
index 0000000..0bb41f1
--- /dev/null
+++ b/sign_tool/assemble.py
@@ -0,0 +1,105 @@
+#! /usr/bin/env python3
+#
+# Copyright 2017 Linaro Limited
+# Copyright (c) 2017-2018, 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
+
+offset_re = re.compile(r"^#define ([0-9A-Z_]+)_IMAGE_OFFSET\s+((0x)?[0-9a-fA-F]+)")
+size_re = re.compile(r"^#define ([0-9A-Z_]+)_IMAGE_MAX_SIZE\s+((0x)?[0-9a-fA-F]+)")
+
+class Assembly():
+ def __init__(self, layout_path, output):
+ self.output = output
+ self.layout_path = layout_path
+ self.find_slots()
+ try:
+ os.unlink(output)
+ except OSError as e:
+ if e.errno != errno.ENOENT:
+ raise
+
+ def find_slots(self):
+ offsets = {}
+ sizes = {}
+
+ if os.path.isabs(self.layout_path):
+ configFile = self.layout_path
+ else:
+ scriptsDir = os.path.dirname(os.path.abspath(__file__))
+ configFile = os.path.join(scriptsDir, self.layout_path)
+
+ with open(configFile, 'r') as fd:
+ for line in fd:
+ m = offset_re.match(line)
+ if m is not None:
+ offsets[m.group(1)] = int(m.group(2), 0)
+ m = size_re.match(line)
+ if m is not None:
+ sizes[m.group(1)] = int(m.group(2), 0)
+
+ if 'SECURE' not in offsets:
+ raise Exception("Image config does not have secure partition")
+
+ if 'NON_SECURE' not in offsets:
+ raise Exception("Image config does not have non-secure partition")
+
+ self.offsets = offsets
+ self.sizes = sizes
+
+ def add_image(self, source, partition):
+ with open(self.output, 'ab') as ofd:
+ ofd.seek(0, os.SEEK_END)
+ pos = ofd.tell()
+ if pos > self.offsets[partition]:
+ raise Exception("Partitions not in order, unsupported")
+ if pos < self.offsets[partition]:
+ ofd.write(b'\xFF' * (self.offsets[partition] - pos))
+ statinfo = os.stat(source)
+ if statinfo.st_size > self.sizes[partition]:
+ raise Exception("Image {} is too large for partition".format(source))
+ with open(source, 'rb') as rfd:
+ shutil.copyfileobj(rfd, ofd, 0x10000)
+
+def main():
+ parser = argparse.ArgumentParser()
+
+ parser.add_argument('-l', '--layout', required=True,
+ help='Location of the memory layout file')
+ parser.add_argument('-s', '--secure', required=True,
+ help='Unsigned secure image')
+ parser.add_argument('-n', '--non_secure',
+ help='Unsigned non-secure image')
+ parser.add_argument('-o', '--output', required=True,
+ help='Filename to write full image to')
+
+ args = parser.parse_args()
+ output = Assembly(args.layout, args.output)
+
+
+ output.add_image(args.secure, "SECURE")
+ output.add_image(args.non_secure, "NON_SECURE")
+
+if __name__ == '__main__':
+ main()